Producent Relco Concept The light dimmer in 100W for LED and incandescent bulbs. If you want to change dimmer, so you can use an LED light source, this model is a great choice. The light is dimmed, as well as switched off and on, using the dial. The dimmer automatically finds out whether the lamp uses LED or an incandescent bulb. The maximum wattage is 4-100W for LED and 40-250W for incandescent bulbs.