http://www.amazon.in/Eveready-9-Watt-Light-Alkaline-Batteries/dp/B015E7V3TA Price = Rs. 399 (FREE shipping for orders above rs. 499) Bulb Base: B22D Lumen: 900 Best and efficient light output upto 100 Lm/W High lumen maintenance over rated life Higher lumen output (20-40 percent higher than most competition) Free 6 alkaline batteries worth RS 210 included Warranty applicable till 30 months from the date of packaging or 24 months from the date of invoice (whichever is lower)