Tender For supply of hpsv lights for 400 kv substation e e - open copper ballast 400w , open copper ballast 250w , open copper ballast 150w , 400w light bulb , 250watt light bulb , 150watt light bulb , 44 mfd capacitor , 20 mfd capacitor , ignitor 240v , driver for 250watt led light , driver for 120watt led light , led driver for philiphes ceiling , surge protector for 120watt lights , surge protector for 250watt lights