Take the 2-minute tour ×
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

I bought a dimmer that supports ic, halogen, led and cfl lights. It says 600w for incadescent and halogen and 150w for led and cfl. Why is the difference? What happens if I put it in a circuit with 8 led lights rated at 25w?

share|improve this question
    
This question is probably best answered on electronics.stackexchange.com as it is the electronic behavior of LEDs which challenges the dimmer. –  wallyk Dec 21 '13 at 3:33

1 Answer 1

up vote 5 down vote accepted

It's not a switch, for one thing. It's a dimmer - a switch, in the same circumstances, would be just fine with full rated amperage of LED or CFL. Unless you have a great deal of interest in dimming, your best option if you have 200W of LEDs on the circuit would be to use a switch.

The limit comes from the interaction of the power supply circuits internal to "dimmable" LEDs/CFLs and the dimmers that can be used with them. Overloading the dimmer will probably cost you at least a new dimmer, and depending what fails, perhaps one or more of the attached lights.

Look at the bottom of page 15:

share|improve this answer
    
Thanks for the reference. So They say that leds take lot more current at startup and at peaks. Hopefully I can stick with 13W bulbs. –  Uncle Meat Dec 21 '13 at 5:54

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.