Few years back I replaced my kitchen CFL bulb with Surya 9watt Led Bulb. I purchased this bulb locally at discounted price which claims 900 lumens.Initially the bulb brightness is good for medium sized kitchen.But after six months it started flickering and when contacted the customer care for replacement since it was under warranty and I had the bill.I was not replaced with new Surya Led bulb which disappointed me.And I replaced with another brand Led Bulb.The only problem with Surya is the customer care service otherwise most of their Bulb are genuine.