Designing A T10 LED Bulb With Constant Current Driver | Voltlog

High quality quick turn PCB Services https://www.pcbway.com In this video I will take you through the process of designing and manufacturing a custom T10 LED based automotive bulb with a high CRI Cree LED rated for 4000K color temperature. We’ll discuss the design choices I made and take measurements to compare this bulb to the lower quality ones that I used to buy from Aliexpress. Generally the problem I had with the Aliexpress bulbs were color temperature, they were all this blue tint, something in the 6500K range and also reliability was a big issue, they were failing quite often due to the high temperatures they run at.

This design does not feature any load resistors (wrongly called CANBUS on various websites) because on my VW the interior lights do not have any monitoring going on so there is no need for that.

→Order Voltlog T10 LED Bulbs here https://voltlog.com/y/q1g3s

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→AL5809 Constant Current Driver Datasheet http://voltlog.com/y/ha8wi
→Cree LEDs Datasheet http://voltlog.com/y/msikd
→Design files (Github) http://voltlog.com/y/04nkd

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