Thread: How To: Cold Burning Coals

Tweet

Originally Posted by SavageEye

Is it true that some LED are ok for dimming while others are not? Thanks!

The LED's themselves can all be dimmed to a certain extent via current limiting, or voltage drop. They however, are not as linear as an incandescent type lights. To dim them further (say around < 20% of total rated output-just a rough estimate % wise), you must use a PWM type dimmer. Otherwise they will flicker noticeably, or not light up at all past a certain drop in voltage.

hey pod love the creep. I used the burning coals effect but I did it an hour before trick or treaters came and it didn't turn out the way I wanted it. I used about 3 to 400 leds with 200 of them being blue. I layered the lights, as I used 2 cans of spray foam. It Looks fine at night but in the daylight not so much. I will be redoing this project over again this winter. Pics of progress to come.

What did you encase the LEDs in?

Originally Posted by The Pod

Attachment 100821

I soldered together 45 red LEDs instead of using xmas lights. (copied the Efx-Tek WickLED circuit).
Attachment 100826

Then wired everything to a Efx-Tek Prop1 and used the candle program to create a random flickering/fading effect of the coals.
Attachment 100828

What did you encase the LEDs in?

This is a great idea! I may have to add this to my list of things to do! Thanks!