I have a 4V, 0.75A, 3W power adapter (120V input) that powers a single LED that is too bright.
Is there a way to make or purchase a dimmer that could work on the low power side?
Thanks
I have a 4V, 0.75A, 3W power adapter (120V input) that powers a single LED that is too bright.
Is there a way to make or purchase a dimmer that could work on the low power side?
Thanks
A resistor should work until you reach the point that the LED goes out. Without knowing the specs on the LED or the current it is running at I am not sure where to start with the resistor but I would shove 10 ohms in there and see what happens. Then work up or down from there.
Good starting point. Thanks.
If the starting point is 4V 0.75A the ending point may be around half this brightness or 3V @0.38A therefore the 1V drop @ 0.38A is around 2.6 Ohms 1/2W
Thanks for the input. Here's how I solved it:
The light appeared too bright, and I thought a dimmer was the answer, but it was really the bright white color of the LED that was ruining the scene.
I found a yellow photographic filter and that did it. The light did not need to be dimmer; it needed to be warmer.
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