Forget bijli bachao. Buy the one with least input power for compressor , anything having below 1400 Watts for a 1.5 ton and below 1000watts for 1 ton is good. Daikin and Hitachi does just that. And by the way my Kashikoi 400i has gone down and Hitachi is dragging it's feet to replace the inverter motherboard ..... Bad Service ? Yes. It's within warranty.