Gu10 5 w led reflector bulb 2 700 k warm white this led reflector bulb is a modern energy saving replacement for all conventional high voltage gu10 halogen reflector bulbs with 35 w halogen lamps in many ceiling and wall spotlights and recessed lights can be replaced with this led reflector bulb to achieve energy savings of up to 90 the led bulb shines at 100 brightness as soon as it is switched on and offers warm white lighting and very good colour rendering at ra80 the lif