Hi Friends, we installed luminous CRUZE SINE WAVE 3.5 KVA UPS on our home 2 years ago. It is 48v inverter maximum output 2800watts, needs 4 batteries to be operational. We installed 4 luminous 180 Ah batteries with it. From then there is only a single time we suffered. Advantages of this ups are: Fast charging, better power backup, lower maintanance, silent operation, led display for showing charging /charging completed/ ups on/ overload /low battery. Disadvantage is only that ups on/off switch is not of
good quality. Once charging is complete, we use 2 air coolers and 3 fans for 8 hours on ups. For safety it has MCB PROTECTION. It has three different options for charging as per battery capacity. For home, small shop, home office this is a good ups, I recommend it but if you want to run ac or other heavy appliances, you should go 5KVA or 6KVA OR Higher capacity ups