Outdoor 50-watt metal halide lamp and quartz light that includes both lamps. Light is designed to operate at either 120- or 277-volts. Light is designed so that if the included quartz lamp is installed there will be light provided by the quartz lamp until the metal halide lamp provides sufficient light, then the quartz lamp turns off. Also have two additional 50-watt lamps that can be purchased at $5 each.