You can switch between overall bright lighting and softer lighting by simply pulling the strings. Creates decorative patterns on the ceiling and walls. Max.: 13 W Diameter: 35 cm Cord length: 150 cm Blade:ABS plastic, Metal coating, Paint Handle:Reinforced polyamide plastic, Metal coating, Paint Ceiling lamp:Polypropylene plastic Support:Polyamide plastic Ball:Aluminium, Copper coating, Transparent varnish Cord:Polyethylene plastic Inspired by science fiction movies, the IKEA PS 2014 pendant lamp won the Red Dot Award, an international design competition. You can easily change its shape and light intensity by pulling the string. Bulb sold separately, recommends E27 clear globe LED bulb. This lamp, which has permanent protection against overheating, should only be used with an energy-saving bulb of maximum 13 watts. If you have a lamp or lampshade that has perforated or cut-out patterns or an open design, use a clear bulb to see the reflection of the light on the ceiling or wall. If you have a lamp shade with a plain and simple base and want a diffused light, use an opal bulb. This product carries the CE mark.