RE: need help finding a 100w bulb for dim tester

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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

In Reply to: need help finding a 100w bulb for dim tester posted by walkstoslow on February 15, 2025 at 09:56:15:

The LED option may not work - depending upon your goals
LEDs operate between 1.5-2 VDC
so a 'dimmable LED bulb' has a Circuit in the base that can take the nominal output from a 120 VAC dimmer and make it vary to support the LED array (usually multiple individual LEDs wired in series)....

If you want a variable Power supply, Assuming Voltage, a Variac will work wonderfully, with good meters.
If you want to vary frequency...
You'll need a Variable Frequency Drive, and that will need to be sized for the load...
Happy Listening

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Follow Ups Full Thread

Topic - need help finding a 100w bulb for dim tester - walkstoslow 09:56:15 02/15/25 (5)

Tough incandescent bulb - Mossback 15:59:14 03/02/25 (0)

RE: need help finding a 100w bulb for dim tester - 6bq5 18:03:34 02/18/25 (0)

you may be better off with a variac and a current meter - Chip647 09:33:08 02/16/25 (0)

RE: need help finding a 100w bulb for dim tester - Story 11:27:43 02/15/25 (1)

thanks, will try.... - walkstoslow 13:22:17 02/15/25 (0)

Follow Ups

RE: need help finding a 100w bulb for dim tester - 6bq5 18:03:34 02/18/25 (0)

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