This is the latest MJ-808E model from MagicShine with much improved battery pack MJ-828. This MJ-808E features the latest super bright CREE XM-L LED and the light includes a newly designed type of thermal protection: MJ-808E will automatically drop the brightness to avoid overheating and will resume the brightness setting when the light cools down. The new battery pack MJ-828 was made from a UL/CE/TUV/PSE certified supplier. It includes a small protection circuit board with over-charge, over-discharge and short-circuit protection function. Features: Light source: CREE XM-L LED Luminous flux: 1000LM LED lifespan: above 50,000 hours Surface treatment: Premium Type III hard-anodized anti-abrasive finish Switch: tail touch switch Working modes: 100% brightness—30% brightness—shine(2.4HZ) Waterproof grade: IP64 Accessories: Charger,2×silicagel mount O-ring, battery bag & Li-ion battery pack Working temperature: -10℃40℃ Warranty: light head has 1 year warranty, all other accessories carry 180 days warranty from the manufacturer. MJ-828 is battery pack Specifications: 5 battery power display, voltage display. Backlight Display. Allow you to monitor the battery voltage even in complete darkness. Battery: 4×18650 Li-ion battery (8.4V4.4AH) Battery life: 500 times cycle Charger: DC 8.4V/1.8A Charging time: 3-3.5 hours.