IKEA Wireless dimmer, white 110 A Toggle Dimmer  (White)

Not suitable for use with wired dimmers. You can add up to 10 light sources and mix LED bulbs, LED light panels, or LED light doors so that they all switch on, off, or are dimmed at the same time. Works with IKEA Home smart. Special waste handling may be required. Please contact your local authorities for more information. With TRÅDFRI wireless dimmer, you can dim your lighting without a wired-in installation. The dimmer has a maximum range of 10 meters when not blocked by walls. A magnet makes it easy to mount the dimmer to the wall bracket or other metal surfaces. The battery is included and lasts approx. 2 years.