Type of Lamp Super Bright White LED : (OSRAM) ·Rated Power of Lamp : 3.3 Watt ·Output Luminous Flex : 330 lm +/- 10% ·Input Operating Voltage : 12V DC Nominal ·Input Voltage Range : 11 to 14Volts DC ·Circuit Efficiency : > 80% ·Input Current : 0.30 Amps + / - 0.05 Amps ·Battery Fully Charge/ Trickle Charging : 14.40Volts + / - 0.2V ·Battery Deep Discharge Cut Off : 11.20V + / - 0.2 V.