Variable Resistors for Track Power LEDs

Larry · 2017-04-16T18:22:40Z

I was ordering some LEDs to replace some old grain of wheat bulbs when I ran across these. (See Attachment) Instead of calculating the correct resistor, these supply the proper current regardless of the voltage. They are about $2.50 each, so much more expensive than plain resistors, but they should keep the LEDs bright regardless of the voltage. (I haven't tried one yet.)Larry Attachment removed

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