The rechargeable version of the Pelican 3610 Flashlight. The 3660 Flashlight uses a long-life NiMH battery pack for extended burn time. It comes with a charger base unit that can be installed at home or work using the 110V transformer or in a vehicle through direct wiring or 12V plug-in adapter. Specifications: Light source - recoil LED, tested lumen value - 40.0, tested lux value (@ 1 meter) - 3,800, batteries - 4 AA NiMH (included), battery burn time - 32 hours, battery pack / charging time - NiMH battery pack / 2-3 hours, watts - 1, voltage - 6, length 7.51", weight w/ batteries - 10.56 oz, weight w/o batteries - 7.04 oz.