Model BL10A Operation Completely Self-contained Input Voltage 110V-127V 50/60Hz;220V-240V 50/60Hz Charging Current 120mA(Nominal) Lamp type 10w Led Tube Battery Li-ion Battery 14.8V 2Ah for 10w Led Tube Indicator Three Colors In 1 LED Indicator, Red Indicates charging, Green Indicates Emergency Mode, Yellow Indicates battery failure; Duration Time More than 2 hours Construction Electro-Galvanized Steel Casing of High Reflectance Finished with Corrosion Resistant Epoxy Spray Coating; Weight 0.3kg(Excluding Batteries http://www.dreamylighting.com