After 2 hours of head scratching, I wonder if someone could help for a second. I am making a cluster of single colour LEDs that run off a wall supply. I’m in the UK
LEDs: 1.45V, 100mA Power supply: 12V, 2A
What resistance is required, and how many resistors?
Also, I am making a light therapy device so I want a concentrated cluster of lights to press onto the skin. How can I get the actual diodes to be quite close together? Use a stripboard, or long wires?
Any help is much appreciated
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