... lamp 2 SpecificationsNoItemUnitData1Rated capacityAh52Nominal voltageV3.73Lighting timeh204LED light source Rated voltageV4.2Main light source/powermA300Auxiliary light sourcemA1205Max luminance at 1mBegin lightingLx10000Lighting 11hLx100006Weight ... brightness LED2. Battery : safety lithium ion battery3. Small in size, light in weight, free maintenance, explosion prevention, waterproof, long life4. ...