supply of supply of 2 kva/8640 vah, 4 star with trolly sinewave invertor ,supply of 2 kva/8640 vah, 4 star with trolly sinewave invertor ,,supply of 2 kva/8640 vah, 4 star with trolly sinewave invertor generally conforming to is-13 369 ,minimum 180 minutes battery backup, 1.2 mm thickness of sheet for trolley, minimum single phase si ne wave (120v to 260v) input single phase sine wave 240 v output input dc voltage -24 v dc , make- lumi nous, microtek or similar and battery make- exide, luminous or similar. oem should have service content at dhn. invertor & battery warranty- 03 years. [ warranty period: 36 months after the date of delivery ] ]