I have bought syska led of 15 watt, in beginning days syska led bulb working very well, and giving good light as a tube light of 40 watt, there is no doubt it consume less electricity than other normal bulb or tube light.
Bit after some its was not working, so it was under warranty, so I complaint to customer care to replacement, buld was replaced, but After replacement, all the replaced bulbs were working on arrival. After 6 days one of the 15W bulb stopped working. Customer care service center not giving response as requirement.
So dont buy it, and go for other brand as Eveready