Minimal head pivots vertically 180°, rotates horizontally 350°. Features horizontal locking mechanisms. Includes energy-saving electronic ballast in slim aluminum die cast housing. Input voltage 120v 50/60 hertz; THD 10%. Power Jack version is compatible with Power Jack Canopy with CMH Ballast (sold separately). Ceramic metal halide MR16 lamp with GX10 base up to 39 watts; ceramic metal halide PAR20 lamp with E26 medium base up to 39 watts; PAR30 long lamp with E26 medium base up to 70 watts (lamp not included).