Bike rear light
thingiverse
This is a very visible rear light for my bike. Red lighting area is 79x50mm. I used black and transparent PETG for part printing. Electronic parts are : - 94x50mm 15W COB LED Light Panel Lamp 12V. - LiFePO4 cell 26700 - Battery poles spring contact (one negative and one positive) - MT3608 step-up module - KCD11 Rocker switch - A power jack - 4x M2.5x15 countersunk screw (frame) - 4x M3x8 screw (mount) The COB led isn't used at full power. Output voltage of the step-up module is adjusted to obtain the right brightness without burn neither eyes nor Mt3608. I plan to update (one day...) the step-up with a LiFePO4 charge driver, cell protection and step-up on the same board, with USB-C connector in place of the jack.
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