supply of supply and installation of 2 kva inverte , supply and installation of 2 kva inverter with 2 nos. 150ah battery, 3 star or above with troll ey, battery backup time up to 180 minutes minimum specification: - inverter governing specification gener ally conforming to is:13314 rating in kva & min. vah capacity of battery 2 kva/8640 vah, type of battery tubular battery - confirming to is: 13369, input single phase sine wave(120 to 260 v), output single phase sine wave 230 v. make/brand : luminous, microtek, exide, sf sonic. or similar. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]