Flashlight Features Same as the 3700 but outfitted with a lens ring that emits a bright glow in the dark. The new generation photoluminescent material in the plastic absorbs the energy from any light source - fluorescent lights, the sun, or even the flashlight's own beam. No more fumbling in the dark for your flashlight. The Big Ed 3700PL is powered by 4 C alkaline cells. | Light Source | Tested Lumen Value | Tested Lux Value (@ 1 meter) | Xenon (Primary) Krypton (Back-up) | 48.0 | 5,000 (Primary) 4,500 (Back-up) | | Batteries | Battery Burn Time | Battery Pack/ Charging Time | 4 C Alkaline (Not Included) | 2.5 hrs. (Primary) 4 hrs. (Back-up) | N/A | | Watts | Voltage | Length | 7.2 (Primary) 4.5 (Back-up) | 6.0 | 7.0" (17.8 cm) | | Weight w/Batteries | Weight w/o Batteries | | | 20.32 oz. (0.58 kg) | 10.5 oz. (0.30 kg) | | | | | Big Ed™ 3700 Photoluminescent Approvals  | | Listed 4S67/E184884 Class I, Div. 2 Grp. A,B,C,D, T2B | | Please call 1-888-376-1113 to purchase more than 50 lights. | |