Philips EnduraLED PAR38 Dimmable LED Lamps with AirFlux Technology provide optimal thermal efficiency in a sleek, lightweight design. 19.5W PAR38 saves 100.5 watts of energy when compared to a 120W halogen PAR38. 45,000-hour rated average life. Instant-on light. Emits virtually no UV/IR light in the beam. Contains no mercury.