I use Zebronics ups for my personal computer last 6 months. I bought this product, this is not good product. After 1 months it got totally damage.I call shopkeeper they told call the customer services. After that I call the customer services, toll free number all time busy. after 4 days they receive my call and after 1 months I got it. This product is well designed but after servicing battery backup really low. customer service is poor. So I suggest that not to buy this product. thank you.