TECHNICAL DATA Type: T2020 NYMANE Input: 110-120VAC, 50/60Hz Range: 10 m in open air For indoor use only Operating frequency: 2405-2480MHz Output power: 10 dBm Manufacturer: IKEA of Sweden AB DO NOT USE WITH STANDARD DIMMERS. Only use the control provided with or specified by these instructions to control this bulb. This bulb will not operate properly when connected to a standard (incandescent) dimmer or dimming control. Only controllable by IKEA Smart lighting products. The colour temperature can be switched between 2200K (warm glow), 2700K (warm white) and 4000K (cool white).