Electron DSP 1200VA instant power supply electric IPS consumption for 8 fans with 14 lights and 1 TV, pure sine wave and smart battery management system, over load protection, save 30% electric bill than general type IPS, constant output voltage, smart short circuit protection, automatic low battery protection, highest power factor for low electricity bills, backup 2 hours and above, Also this pure sine wave 1200 VA electric IPS comes with 3 years guarantee.