Weltool W5 Pro LEP Search Light 990 Lumens 2.02million Candela Batteries Included myThe Weltool W5 Pro LEP search light is an upgraded version of the W5, with 990 lumens, 2. 02 million candela, and a throw of 2842 meters. It uses two 22500 lithium ion batteries, or you can purchase a BB5 extension tube separately to use two 21700 lithium ion batteries to increase runtime. The W5 Pro comes with a temperature control function and ensures that the flashlight does not overheat. The LEP light source of the W5 Pro has high energy density