PRO-STAR™ 120V MR-16 G10 Base Reflector Lamps were designed for applications where the compact appearance of an MR-16 is desired without the requirement of a low voltage transformer. The PRO-STAR™ lamps feature a "turn-in/turn-out" locking base that is designed for easy installation in compact spaces. In addition, the overall length of PRO-STAR™ lamps is shorter than PAR-16 and JDR Halogen lamps making them a perfect fit for compact lighting designs. These lamps are available in aluminum (GU10) and dichroic (GZ10) reflectors with UV-stop front glass that protects objects from harmful ultraviolet emissions. With beam spreads of 25 degree narrow flood and 50 degree wide flood, these lamps are ideal for most indoor general lighting applications.