Fully assembled, dual 2ft LED grow light requires no lamps to replace. Rated for high humidity use. Instant full brightness. No humming. Includes 5 foot plug-in cord with on/off rocker switch and a 6 inch hanging wire harness. Linkable up to 8 fixtures. UL/CUL Listed FCC Compliant. 1.73"H x 23.3"L. 120 volt, 19 watts.