The clean, functional lines of the open back spotlight allow maximum adjustability. Open back spotlights relamp from the back and include an on-off switch and a floating socket mount. The minimum profile with stylized yoke design is ideal for retail and commercial applications. For use with 120-watt maximum PAR38 lamp. Universal Spotlight. Use PAR20 lamps for the smallest footprint or PAR30 lamps if more light is desired.