The Ultrafire 501B and 502B has been there for a while and are time tested as some of the most economical lights in the single 18650 range. Both the 501B and 502B have very good amount of Floody Beam with decent Throw for the size. The Ultrafire 501B and Ultrafire 502B are available in India at Lightorati. Order your Flashlight at Lightorati with your own Laser Engraving.