Uses 13 watts at 12 volts and produces 850 lumens. This surface mount light has the following dimensions: 21.312" x 4.125" x 1". Supplied with one F13T5/CW fluorescent tube. Designed for high light output at low amp draw. White powder coated aluminum housing is complimented by non-yellowing diffuser lens with attractive wood grain finish. Includes standard AC fluorescent tube powered by Thin-Lite's highly efficient DC electronic ballast. Draws 1.1 amps at 12VDC. Produces 100 measured lumens per watt, equivalent to one 65 watt incandescent bulb. Includes D-125 lens and IB-125 inverter ballast.