... .Long life of 50,000h 3.can be used as desk lamp! Canton Fair Booth No:11.3D17,15th-19th,April,2013Welcome ... -acid battery, 4.0V/0.4AhLensReflector cup(front lamp) and PMMA lens(tail lamp)Lifespan500,00hLighting period8HoursCharge voltageAC100-250VCharge time8Hours(220V), 15hours ...