Flashlight Features Same as the 3750 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. | Light Source | Tested Lumen Value | Tested Lux Value (@ 1 meter) | Xenon (Primary) Krypton (Back-up) | 72.0 | 8,000 | | Batteries | Battery Burn Time | Battery Pack/ Charging Time | 4 C NiCad (Included) | 2 hrs. (Primary) 5 hrs. (Back-up) | NiCad Battery Pack 2.5 hrs. | | Watts | Voltage | Length | 8.2 (Primary) 3.5 (Back-up) | 4.8 | 7.0" (17.8 cm) | | Weight w/Batteries | Weight w/o Batteries | | | 20.48 oz. (0.58 kg) | 10.5 oz. (0.30 kg) | | | | | Big Ed™ Rechargeable 3750 Photoluminescent Approvals  | | ll 3 G EEx nL llC T2 (HI); T4(LO) Certificate: Epsilon 01ATEX1066X |  | | Listed 4S67/E184884 Class I, Div. 2 Grp. A,B,C,D, T2A | |