Latest charge controller Tenders | Government charge controller Tenders

Central Government/Public Sector

CTN :45475154

07 Jul, 2026 30.00 Lacs

Gwalior - Madhya Pradesh

Tender For corrigendum : repair / replacement and maint of lt external electric supply works and other connected items at east & west wing in tech area under ge (af) tech area gwalior - s&f in repair mccb, 4 pole, 630 amps current rating and ultimate breaking capacity ics=icu =100% 36 ka with adjustable overload setting and having thermal magnetic release and to be fixed in distribution board, complete all as specified and directed., all as per item here-in-before but mccb, 4 pole, 400 amps current rating and ultimate breaking capacity 36 ka. ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 315 amps current rating and ultimate breaking capacity 36 ka. ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 250 amps current rating and ultimate breaking capacity 36 ka. ics = 100% of icu, all as per item here-in-before but mccb, 4 pole, 160 amps current rating and ultimate breaking capacity 36 ka . ics = 100 % of icu, all as per item hereinafter but mccb, 4 pole, 125 amps current rating and ultimate breaking capacity .16 ka . ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 100 amps current rating and ultimate breaking capacity. 16 ka. ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 63 amps current rating and ultimate breaking capacity .16 ka . ics = 100 % of icu, m&l for earthing complete with galvanised steel plate electrode 600x600x6mm thick buried directly in ground (top edge of the plate should not be less than 1.50mtrs below ground level) connected to gi strip 25 4mm by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point all as specified incl 20 mm gi tubing medium grade and necessary fitting for protection of gi strip incl laying of charcoal dust and common salt in alternate layers of 150mm th, pcc chamber using pcc(1:3:6) type c-1 using 20mm graded stone aggregate, rcc cover 40mm thick (1:2:4) type b-0 using 12.5mm graded stone aggregate reinforced with 6mm dia round bar @ 75mm c/c both ways with ms handle 8mm dia, plastering 15mm thick cm (1:6) externally up to 150mm below ground level, gi funnel with 20mm dia medium grade gi pipe for watering and wire mesh incl excavation and earth work and disposal of surplus soil complete all as specified and shown on electrical plate no.3 of ssr part-i (2009) and connected to earth test point incl testing and marking bldg nos and writing test results (in white) on a black painted m.s. plate (size 300x300x3mm th) duly welded with angle iron of size 40x40x5mm, 60cm long, fixed with the earth pit chamber by grouting complete all as specified and directed.note :- (i) gi strip 25 4mm and gi pipe medium grade, up to 7.5mtr shall be deemed to be included in the rates quoted for earthing.(ii) excavation and earth work in any type of soil strata shall be deemed to be included in rates quoted for earthing. (iii) the rates quoted by the contractor are deemed to be included for pcc chamber and pcc cover as per ssr part-1.-, m&l for preparation of old painted surfaces of lt steel tubular pole/strut, of any description and in any position 9.00/8.50 mtr height and scrapping of pole with emery paper and applying one coat of aluminium paint on all the metallic surfaces including protection pipe, cross arms, clamps, gi pipe bracket of street/security light, anti climbing devices etc and providing three nos radium band strips complete all as specified and directed., supplying ,laying, jointing and testing xlpe insulated, armoured, heavy duty, aluminum conductor cable 1100 volts grade ,laid in trenches/ducts, floors, fixed to walls etc. complete all as specified and directed for the following sizes.note: the cost of taking down of lt ug cable is deemed to be included in the quoted rate, 35 sqmm 3 core, 50 sqmm 3 core, 70 sqmm 3 core, 185 sqmm 3 core, 240 sqmm 3 core, excavation in trenches n exc 1.5 mtr wide and n exc 1.5 mtr depth for foundation and laying of cable and get

Central Government/Public Sector

CTN :45709067

18 Jul, 2026 45.00 Lacs

Roorkee - Uttarakhand

Tender For repair replacement of internal wiring incl sub main wiring, mcb dbs, bldgs security lights and connected items in pocket 1 to 8 under ge roorkee - taking down old unserviceable point wiring of any description including all fittings and fixtures like switches, sockets, ceiling rose, fan regulator, tubelight,, mirror light,, ceiling light etc complete all as specified and directed., m&l for point wiring with 1.5 sqmm frls-h insulated, unsheathed, multistranded, 1100 volts grade copper conductor cable single core conforming to is:694 along with one run of 1.5 sqmm frls-h insulated copper conductor cable green in colour for continuous earthing drawn through and including medium grade rigid pvc conduit conforming to is:9537 (pt-iii) and its all accessories / junction boxes / inspection covers etc of suitable size but not less than 20mm(od), concealed in wall/ floor etc including provision of earth dolly of suitable size concealed in wall and covered with 3 mm thick phenolic laminated hylam sheet fixed with brass gi screws/ modular cover plate as required for mounting switches, sockets, fan regulator, etc. / modular metal flush box covered with modular frame plate with cover of any size as per site requirement for mounting modular switches, modular sockets, modular fan regulator etc complete all as specified and directed for one light / ceiling fan / exhaust fan / call bell point controlled by one switch, all as per item no 2 here-in-before but one 6a socket point controlled by one switch on independent board, all as per item no 2 here-in-before but one 6a socket point controlled by one switch on same board, all as per item no 2 here-in-before but one 16a socket point controlled by one 16a switch on independent board with 2.5 sqmm wires., all as per item no 2 here-in-before but one wiring in existing conduit for one light / ceiling fan / exhaust fan / call bell point controlled by one switch., all as per item no 2 here-in-before but one one 6a socket point controlled by one switch on independent board, all as per item no 2 here-in-before but one one 6a socket point controlled by one switch on same board, all as per item no 2 here-in-before but one one light point controlled by two no. two way switch complete all as specified and directed, all as per item no. 2 here-in-before but one 16a socket point controlled by one 16a switch on independent board with 2.5 sqmm wires., m&l for sub main wiring along with earth wire with frls-h insulated copper conductor, single core cable drawn through and including medium grade rigid pvc conduit conforming to is:9537 (pt-iii) and its all accessories/junction boxes/ inspection covers etc of suitable size but not less than 25mm concealed in wall/ floor etc including taking down existing unserviceable sub main wiring of any description complete all as specified and directed for 2runs x 4 sqmm(ph & n) + 1run x 4 sqmm(earth wire):- (note: three runs of copper cable and one run of pvc conduit shall be measured as one unit length), all as per item no 11 here-in-before but 2runs x 6 sqmm(ph & n) + 1run x 6 sqmm(earth wire), all as per item no 11 here-in-before but 2runs x 10 sqmm(ph & n) + 1run x 10 sqmm(earth wire), all as per item no 11 here-in-before but 4runs x 6 sqmm(ph & n) + 1run x 6 sqmm(earth wire), notes for item no. 2.00 to 14.00(i) quoted rate shall deemed to include the cost of cutting chases on wall/floor for concealed conduit wiring and making good with cement plaster, putty and paint to match with the existing surface.(ii) if any beam / column / rock wall is encountered while cutting chases, that particular portion may be provided with pvc casing & capping or surface conduit for drawing cables and surface pvc gang box fully enclosed type for mounting switches, sockets & regulators etc to avoid any damage to the structure. (iii) no cutting shall be done on ceiling for laying pvc conduit for ceiling fan point wiring. surface conduit or pvc casing capping may be

Central Government/Public Sector

CTN :45609297

06 Jul, 2026 15.38 Lacs

Imphal - Manipur

Tender For corrigendum : supply of amc of spol system-1st year. , amc of spol system-2nd year. , supply of maintenance free battery 12v 75ah with buy back arrangement. for 1st year. , supply of maintenance free battery 12v 75ah, with buy back arrangement. for 2nd year. , supply of heavy-duty solar charge controller.

corporations/Associations/Others

CTN :45723719

13 Jul, 2026 21.51 Lacs

Kasaragod - Kerala

Tender For material supply for the installation of 4 line hanging solar power fence at rajapuram estate - hanging solar power fence, p.p reel insulator , must be of virgin plastic metirial. polypropylene or equivalent with break down voltage of 15 kv(weight 25gm avg, length 4.6 cm avg), strain insulator, must of poly polypropylene plastic rated for 15 kv uv stabillized ,(weight 40 gm avg, length 7 cm avg), gi post 12 feet , 2" gi pipe, 14 guage thickness,total 14.5 ft length modified to 12 feet length and cut and welding to 90 degree bend 2.5 feet length at top end and having diametrically opposite holes of size 6 mm at end of bend pipe, intermediate post (t angle post) , 6ft., painted(25mm*25mm*3mm)having holes of size 6 mm at required interval of fencing installation, supporting post, 10ft.,gi-1,14 guage thickness,painted, stay (t angle), 2ft., painted(25mm*25mm*3mm), 12 swg ht wire, 12 guage,2.5 mm dia high tensile wire with zinc coating for use as conducting wires,binding strain insulator, 14 swg binding wire , high quality zinc coating wire for binding reel insulator, tighing support post with corner post, 1.5 mm stainless steel wire rop 304 grade, aluminium ferruel, aluminium ferruel 3 mm, wire tightner , permanat wire tightner made of special aluminium alloy designed for kv, uv stabillized, earth rod, copper plated earth rod 14 mm -3ft. length, earthing compound, earthing compound 8 kg, gate handle, gate handle and spring assembly, handle made of polyethylene, leadout cable,leadout cable for fence system double insulated gi cable inner core wire 2 sq.mm.hot dipped galvanised steel core, capaie of with standing 15kv should be provided to prevent bimetal salt formation at connections, single core 2.5 mm sq. cable, 2.5 mm2 single core copper cable for connecting the solar panel to the tubular battery through charge control unit with required terminal sockets,nut and bolt,washer, lightning diverter, 15kv -50kv rod gap arrester,must be capable of diverting stray lightning and adjustable for spark gaps adequate earthing to be provided, 100 watt solar panel, 100 watt/12 volt and above poly cristalline with 10 year warranty having iec/mnre certification, charge control unit, 20 a,12/24 pwm charge controller unit of standard make suitable to control the charging of the tubular battery, energizer, energizer with 10 kv output safety standards to be followed are bis 302-2-76 iec60335-2-76. switch-high, medium and low power setting., fence alarm system, fence alarm system covering area of 1.5 km, solar panel sapporting stand with metal box painted (for battery and energiser), 18 guage thickness metal box(lockable). gi-sheet, painted should be capable of housing battery, charge controller and energizer and fixed with reguired clamps and nut and bolt on solar panel suppoert stand made of gi pipe of 50mm diamere and b class type with suitable arreangement for holding the panel, warning sign, polyethylene plastic with satuatory wrning with signs, tubular battery 12v , 100ah, 12 v, 100 ah c10 rating with full 5 year replacement warranty (tower battery) for energising the energiser

CTN :45737971

11 Jul, 2026 NA

Leh - Jammu And Kashmir

Tender For supply of combined 5 pin 15 amp , bell switch 5 amp , pvc switch and socket combine with board 15 by 16 amp , pvc switch and socket combine with board 5 by 6 amp , distilled water , combination plier , cutting plier , screw driver set , ceiling led light , 2 pole mcb 10 ampcomma 220 volt , 2 pole mcb 16 ampcomma 220 volt , 2 pole mcb 32 ampcomma 220 volt , 2 pole mcb 64 ampcomma 220 volt , 0point5 hp water pump , car air pressure pump , 16 amp switch , 16 amp socket , mcb 2 pole 20 amp , 4 into 7 pvc board gangbox , 12 into 12 pvc board gangbox , 4 into 4 pvc board gangbox , 6 amp socket , main switch 63 amp , cable 2 core roll of 91 mtr 6 sqmm aluminium , change over switch 400 amp 3 phase 4 pole , 200 amp cut off fuse , 200 amp 3 pole mcb , mcb 63 ampcomma 220 volt , cable 2 core roll of 91 mtr 10 sqmm aluminium , main switch 100 amp , xlpe three core 50 sq mm aluminium unarmoured power cable 1 point 1 kv , cable 2 core roll of 91 mtr 16 sqmm aluminium , earthing set meter tester , earthing wire single core 1point5 sq mm , line tester , bulb holder , red indicator light for electric board , cable 2 core roll of 91 mtr 2point5 sqmm , kit kat fuse box 3 pole , xlpe two core 50 sq mm aluminium unarmoured power cable 1 point 1 kv , xlpe four core 25 sq mm aluminium unarmoured power cable 1 point 1 kv , xlpe two core 25 sq mm aluminium unarmoured power cable 1 point 1 kv , xlpe two core 16 sq mm aluminium unarmoured power cable 1point1 kv , 100 amp 415 volt busbar chamber board with 100a four pole isolator protection , mccb 415 volt 3 phase 100 amp , mcb box 8 way , gi tubular pole 100 mm dia length 5 mtr thickness 4 mm with baseplate 250mm x 250mm as per is 2713 part 1 and part 3 , aluminium lug 50 mm , aluminium lug 10 mm , aluminium lug 25 mm , gi nut and bolt size m 10 length 50 mm full thread , charcoal , salt , earthing plate 2 feet into 2 feet into 8 mm , gi wire 6 mm , winding wire , cable tie lock belt 6 feet feet , main switch box 4 pole 3 phase 200 amp , exhaust fan 9 feet feet 30 watt , screw size 1 feet feet , bed switch size 6 amp 220 volt , batton holder 06 amp 220 volt , pendant holder 06 amp 220 volt , lighting conductor rod , hydrometer for specific gravity , drill machine set battery , change over switch 32 amp single phase 2 pole , kit kat fuse switch gears , extension board of 02 capacity , ampere meter , double core wire 8 sq mm , double core wire 16 sq mm , double core wire 25 sq mm , digital clamp meter , dc test lamp automatic circuit tester , multistrand electrical wire 2 sq mm pvc single core , tulu pump 1 to 1 point 5 hp , pvc gang box 4 into 2 , pvc gang box 2 into 2 5 pin socket 5 amp, switch 5 amp, 3 pin plug 15 amp, 3 pin plug 05 amp, modular switch board (4 switch, 1 socket), modular switch board (6 switch, 1 socket), modular switch board (8 switch, 2 socket), 1 switch + 1 socket smart switch board , 4 switch + 1 socket smart switch board , 6 switch + 2 socket smart switch board , 8 switch + 2 socket smart switch board , cable four core 10 sq mm , cable 2 core roll of 91 mtr 10 sqmm, cable 2 core roll of 91 mtr 6 sqmm , multistrand electrical wire 6.0 sq mm pvc single core, multistrand electrical wire 4.0 sq mm pvc single core, multistrand electrical wire 2.5 sq mm pvc single core, multistrand electrical wire 1.5 sq mm pvc single core, multistrand electrical wire 1.0 sq mm pvc single core, multistrand electrical wire 0.75 sq mm pvc single core, casing and caping 20 mm (length of 3 mtr), casing and caping 25 mm (length of 3 mtr), led bulb 20/24 watt, //bid details 2 / 94

CTN :45693976

17 Jul, 2026 NA

Mumbai - Maharashtra

Tender For supply and installation of training items for drone technician trade under craftsman training scheme (cts) at consignee locations - pliers, soldering station, multi meter, binoculars, anemometer, magnifier, unassembled drone kit, unassembled drone kit - standard with hd camera & thermal camera, electricity lab, smd technology kit with wall chart, dc regulated variable programmable dc power supply, drone workbench, analog-digital circuits development platform, applied mechanics training platform, drone battery management training systems, charge controller training system, bldc (brushless dc) motor training system, inverted pendulum, drone sensor trainer kit, antenna training system, advanced microwave integrated circuit lab, gps training platform, wireless communication modules, fcb and esc training platform, drone gimbal set with motor and control, npnt compliant micro uav built for mapping and surveillance, field repair kits, drones and spare parts kit, balance charger, power distribution board, laptop latest configuration, thrust measurement meter, indoor netted facility, outdoor controlled netted testing facility, various electronic and electrical components, 3d printer, drone ( long range)

Central Government And Public Sector

CTN :45333186

14 Jul, 2026 59.95 Lacs

Lucknow - Uttar Pradesh

Tender For corrigendum : supply of main fire pump , diesel driven pump , jockey pump , terrace pump , control panel , starter , m s pipe , internal hydrant valve , external yard hydrant valve , butterfly valve , sfc of butterfly valve , orifice plate , pitc non return valve , stainless steel y strainer , pitc of stainless steel y strainer , hose pipe , first aid hose reel , short branch pipe , fire brigade connection , foot valve , air vessel , pressure switch , pressure gauge , control valve , hose cabinet , cutting holes , supply of cable , laying of cable , end termination , fire cable , cable tray , earthing , gi strip , gi strip , earth wire , gi pipe

Central Government/Public Sector

CTN :45722727

06 Jul, 2026 NA

Multi City - Maharashtra

Tender For auction sale of depot ferrous scrap - scrap and unserviceable condemned mix m.s. coach cutting items & various types of similar items such as , body side door m.s., p.o.h. coaches realised corroded pieces,air brake,clamp,pipe pin,m.s. door of battery box ,m.s.ventilation door,foot plate,ice box,m.s. spring,m.s. angle,and m.s. lader with rubber coating,coach cuttings, coach doors , seat frames , bearth/seat frames, light head stock cuttings, train lighting fittings,, side lamps lamp hand signal, fittings, tail lamp fittings, cft/tl light fittings, ictp/ icfp empty swich boxes tail lamps, tube light fittings, tube light jali, fan blades, fan jali, fan guards fan ribs, fan rings, empty power pannels, signal platform, destination board, valley board, letter board,ms signal base, loc, inercooler, nut bolts and other hardwares, m s furniture.m s wheel stand,window grill, ms measuring cans, tins, racks, break pipes, silencer of tower wagon, dust bin, ms pipe and cut pcs. of ms pipes, rods, ms bars released from broken constructin, compressor spring, wire /coil springs, ms rope wire, pcs. of brake beam pipes, stands, m s ferrous light junk kachra related scrap i.e ms angles, chanels, flats pcs. of cable racks/laders ms brackets, dust bin stand, tin fuse box, fire extinguisher, empty glow sign boards, empty electrical pannel, ms stand, oven, earthing patti, empty cable tray, fly catcher, galvanized patra / sheet and their cut offs, cut pieces of ms cupboards, rack etc, plain/ corrugated / toughened sheets and its cut pcs. such as strips, patties, patties, patra, rings, coils, boxes, ms brake control cover, patra, angle, small springs, pins, wire, electric point, shunt signal unit and post. signal ladder , location box, earth electrode , signal post and base , signal unit, point roddings , junction route indicator and cut pieces in mijscellaneous, coil, collapsible doors and shutters and their parts/cut offs, grills , channel grills, compound /bridge jali with or without frame, ms fencing and their parts, fencing patties, angle pcs., frames,wire mesh, g.i./ms pipes and tubes , tubes and their cut pcs, damaged gi/ ms pipes/ rods/ tubes and their pcs. , ms/galvanised boxes, junction box, switch boxes, empty convertor, payary (steps), filters, rings, nut bolts, u clips, pipe pin, gate m/c dismentled, liquid container, damaged video boxes and their cut offs, crt cabinet, location boxes , jumper, jumper box,ground connections , basket steel, water cane/ material carring trolley,steel baskets, containers, trays, frames, stretchers, nets/ jali , released ground connection, halogen, panto pans, compressor spares, dust guard, air filters and filter covers, ms/gi duct and its parts,insulating armature of signal cable, hand lamps, side lamps, signal lamps petromax, hs lamp, clamps, signal post,signal platform, signal base, ms/ gi wire/ coil, funnels, wall protectors, boxes, iron bar pcs released from broken construction , desmantelled weighing machines parts/ covers etc. ms pipe with or without ci attachment, bins, plates, rings, spares/ parts /body of weighing machine , platform weighing machine and its parts, pressure switches and other switches , signal parts, location boxes,panel board,fuse box,mdb board,pedestial for lc gate and their cut parts and other ferrous miscellaneous scrap items with or without minor nf/ss/ wooden / rubber / rexine attachments of sorts and sizes, broken and damaged, u/s for rly. use, excluding items: rail and rail pcs., axles and axle pcs., wheel tyre and pcs., cam shafts, helical springs, bolster springs, buffer plungers, face plates, axle box housings/ casings, brake beams, fish plates, screw couplings/draw bar hooks, break beams, reservoir tanks, st sleepers and other various types of similar ms items etc. note: 1. hammering/ pressing/ cutting is permitted for easy loading only, 2. if found any non-ferrous item will not be delivered (qty approx)

Central Government/Public Sector

CTN :45722728

06 Jul, 2026 NA

Multi City - Maharashtra

Tender For auction sale of depot ferrous scrap - scrap and unserviceable condemned mix m.s. coach cutting items & various types of similar items such as , body side door m.s., p.o.h. coaches realised corroded pieces,air brake,clamp,pipe pin,m.s. door of battery box ,m.s.ventilation door,foot plate,ice box,m.s. spring,m.s. angle,and m.s. lader with rubber coating,coach cuttings, coach doors , seat frames , bearth/seat frames, light head stock cuttings, train lighting fittings,, side lamps lamp hand signal, fittings, tail lamp fittings, cft/tl light fittings, ictp/ icfp empty swich boxes tail lamps, tube light fittings, tube light jali, fan blades, fan jali, fan guards fan ribs, fan rings, empty power pannels, signal platform, destination board, valley board, letter board,ms signal base, loc, inercooler, nut bolts and other hardwares, m s furniture.m s wheel stand,window grill, ms measuring cans, tins, racks, break pipes, silencer of tower wagon, dust bin, ms pipe and cut pcs. of ms pipes, rods, ms bars released from broken constructin, compressor spring, wire /coil springs, ms rope wire, pcs. of brake beam pipes, stands, m s ferrous light junk kachra related scrap i.e ms angles, chanels, flats pcs. of cable racks/laders ms brackets, dust bin stand, tin fuse box, fire extinguisher, empty glow sign boards, empty electrical pannel, ms stand, oven, earthing patti, empty cable tray, fly catcher, galvanized patra / sheet and their cut offs, cut pieces of ms cupboards, rack etc, plain/ corrugated / toughened sheets and its cut pcs. such as strips, patties, patties, patra, rings, coils, boxes, ms brake control cover, patra, angle, small springs, pins, wire, electric point, shunt signal unit and post. signal ladder , location box, earth electrode , signal post and base , signal unit, point roddings , junction route indicator and cut pieces in mijscellaneous, coil, collapsible doors and shutters and their parts/cut offs, grills , channel grills, compound /bridge jali with or without frame, ms fencing and their parts, fencing patties, angle pcs., frames,wire mesh, g.i./ms pipes and tubes , tubes and their cut pcs, damaged gi/ ms pipes/ rods/ tubes and their pcs. , ms/galvanised boxes, junction box, switch boxes, empty convertor, payary (steps), filters, rings, nut bolts, u clips, pipe pin, gate m/c dismentled, liquid container, damaged video boxes and their cut offs, crt cabinet, location boxes , jumper, jumper box,ground connections , basket steel, water cane/ material carring trolley,steel baskets, containers, trays, frames, stretchers, nets/ jali , released ground connection, halogen, panto pans, compressor spares, dust guard, air filters and filter covers, ms/gi duct and its parts,insulating armature of signal cable, hand lamps, side lamps, signal lamps petromax, hs lamp, clamps, signal post,signal platform, signal base, ms/ gi wire/ coil, funnels, wall protectors, boxes, iron bar pcs released from broken construction , desmantelled weighing machines parts/ covers etc. ms pipe with or without ci attachment, bins, plates, rings, spares/ parts /body of weighing machine , platform weighing machine and its parts, pressure switches and other switches , signal parts, location boxes,panel board,fuse box,mdb board,pedestial for lc gate and their cut parts and other ferrous miscellaneous scrap items with or without minor nf/ss/ wooden / rubber / rexine attachments of sorts and sizes, broken and damaged, u/s for rly. use, excluding items: rail and rail pcs., axles and axle pcs., wheel tyre and pcs., cam shafts, helical springs, bolster springs, buffer plungers, face plates, axle box housings/ casings, brake beams, fish plates, screw couplings/draw bar hooks, break beams, reservoir tanks, st sleepers and other various types of similar ms items etc. note: 1. hammering/ pressing/ cutting is permitted for easy loading only, 2. if found any non-ferrous item will not be delivered (qty approx)

CTN :45704795

06 Jul, 2026 NA

Gurdaspur - Punjab

Tender For supply of fd security light c c - led light , solar panel , battery capacity , motion sensor , detection by motion sensor , solar charge controller rating , lumen output , dimming , led dispersion angle , power supply efficiency , led light operating voltage range , load cut off voltage for battery deep discharge protection , humidity range , temperature range , light back up time

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