1 Answer. Not all LED’s are dimmable. Dimmers for LED’s have a trim wheel that you can adjust and give you a more balanced dimmer and effect.Click to see full answer. Also asked, are GE LED Christmas lights dimmable?With a few exceptions, all of our LED Christmas lights are fully dimmable. The battery-operated sets, the Color-Rite line and some of the multi-function sets are not dimmable.Also, do you need a special dimmer switch for LED lights? Because of their circuitry, LEDs are not always compatible with traditional dimming switches. If you’d like your LED to be dimmable, you need to do one of two things: find LED bulbs compatible with traditional dimmers, or replace your current dimming switch with a leading-edge (LED-compatible) dimmer. In this regard, are all LED lights dimmable? Dimmable LED Light Bulbs. While many LED bulbs are now dimmable, not all of them are and not all of them dim daylight lighting in the same way. Since LEDs consume such a low wattage, many types of dimmers do not function with LED in the same way that they do with high wattage load incandescents.How do I know if my LED is dimmable?Look for an “LED” or “LED LAMP” marking on the bulb as well. Most residential LED light bulbs are dimmable, but some are not. In addition, the amount they can dim, or “dimming range”, also varies based on the light bulb used.