Tender For supply of 2 kva/8640 vah sine wave inverter with trolley and batteries, inverter governing s pecification: is 13314, technology: igbt/pwm, input: single phase sine wave (120 to 260v), output: single phase sine wave 240v, inverter efficiency: >/= 87%, over load of rated load: >/=10%, degree of protection : ip21, total harmonic distortion: =5%, type of battery: tubular battery confirming to is:13369, backup t ime: 180 minutes (minimum). make: luminious/microtek/exide or similar. warranty: inverter: 2 years, batte ry: 5 years from the date of supply. ]