Ten Questions About Dimmable LEDs Answered
- 27 Apr, 2015
Q 1: Are LED bulbs dimmable?A: Not always. Unlike halogen bulbs (that can all be dimmed) LED bulbs come in dimmable and non-dimmable varieties, so you will need to purchase dimmable LED bulbs. When purchasing dimmable LED bulbs, you must also understand leading-edge dimmer switches vs trailing-edge dimmer switches. A leading-edge switch is designed for traditional light bulbs; the high minimum load will work to an extent with LED bulbs, but they will not perform perfectly. Trailing-edge switches are designed for LED bulbs. The low minimum load gives a range of 0.5% - 100%, so you get a much more consistent performance. On each product page on the LED Hut site, you can choose between dimmable and non-dimmable options: Or call and our sales advisors will help you make the right choice for your needs.
Q 2: Do I need to change my fittings, drivers or anything else to install dimmable LEDs?A: Fittings should not have to be changed. Our bulbs have the same or very similar dimensions to the incandescent or halogen bulbs you may be replacing and have the same base, such as GU10.
In the case of low voltage lamps such as MR16 spotlights, it is unfortunately necessary to change the transformer for an LED-compatible driver. This is due to the lower power consumption of the LEDs, and their requirement to run on DC.Another consideration is the dimmer switch. LED dimmable bulbs require a trailing-edge dimmer switch. This brings us to the next question:
Q 3: If I need to change my driver, which do I need?A: The driver will depend on the total wattage of all your bulbs. This shouldn't exceed 80% of the transformers capacity.For more information on drivers and transformers see our guide here.
Q 4: Do I need a special dimmer switch?A: Usually yes. The dimmer switch you may have used for your halogen or incandescent bulbs works in a different way to the type needed for LEDs. Some of our lamps will work on a standard leading edge switches, such as the GU10-350, but in most cases we recommend a trailing edge dimmer switch, such as the Varilight V Pro. This switch has 3 modes of operation, so is very flexible and its performance can be optimised to work with your dimmable LED lamps.You can use your existing stitch cover and only replace the workings.
- Leading edge work with incandescent and halogen bulbs
- Trailing edge work with incandescent and LED bulbs