Small and easy to place anywhere you want to bring some cosiness and mood light into your home. If you want to dim the light, just turn the knob. By dimming the lighting, you change the mood in the room while saving energy. Light bulb sold separately. IKEA recommends ROLLSBO LED bulb E14 200 lumen, dimmable, chandelier brown clear glass. Can only be used with light bulbs that are dimmable. Cannot be combined with TRÅDFRI LED bulbs.