Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
you can use a darlington transistor or 2 transistors to drive the leds. i assume that you have a small voltage power suply for the electronics and a highter voltage power suply(40-50 volts) for the 20 leds in series?
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