Simera round LED ceiling light with black, flat plastic lampshade The Simera round LED ceiling light has a very simple design and only catches the eye with its black, flat lampshade. Fitted with warm white LEDs and equipped with a diffuser at the bottom of the lampshade, it emits very pleasant, glare-free lighting. The light is dimmable in three stages using any wall switch. The brightness can be varied by pressing the switch several times in quick succession. Switch it once to 100 %, switch it twice to 55 %, switch it three times to 20 % and switch it off again with the fourth switch. This function makes it a flexible light source for many rooms, providing customised lighting without the need for a dimmer.