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I stock many of the parts used in these Bike lighting projects, on my web store.
Here is the link to my web store page with bike lighting and P7 LED parts.
Click here to go to my web store

Click here to go back to the Main Bike lights page

The Guts/electronics inside my P7 lights - Page 1
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The photo above shows how the LED electronics stack is assembled.
The first item in the stack is a glass epoxy spacer that sits up against the rubber switch cap and is in contact with the switch.
Then a clicky switch is soldered to a custom cut glass epoxy circuit board.
The switch board then gets a Battery+ wire and a Battery- wire soldered to it.
Two 1400ma current limiter boards slide down onto the wires and are soldered in place.
A glass epoxy LED board is added to the stack that has two wires that go to the LED
The LED capsule is added to the stack, the wires are insulated to keep them from shorting.

Update Note: I now have a way to switch in each 1400ma board, one at a time.
Look for the switch mod on the main bike lights page
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1400ma Board with two diodes removed
Holed drilled for LED-
Switch Board installed in Tail Cap One 1400ma Board installed onto stack
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Two 1400ma Boards installed onto stack LED connection board installed onto stack LED Capsule sitting on top of Stack
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