how would i be able to change this?

Wendy

Joined Mar 24, 2008
23,415
It's depending on the voltage drop of the diodes. You are not using a battery, you are using line voltage. This can be dangerous, caution is important here.

The LED is an old one, on of the types that use 1.5V dropping. Modern LEDs drop 2.5, you will need more 1N5404 diodes to drop more voltage.
 
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