| Main > Main Forum |
| Keywiz help |
| (1/1) |
| Firehead:
Hi guys! How many led can be connect in parallel to the 5V+ on a keywiz usb? Firehead |
| Franco B:
It depends on the LEDs forward voltage and the LEDs forward current. If you know the specs of your LEDs you can use [this] calculator to design a parallel array. Note, you want to keep the total current drawn under 500ma so you don't damage your PC. If I put in the specs of some of the LEDs I have into that calculator (3.4V, 30ma) it looks like I would theoretically be able to connect 16 of those LEDs in parallel whilst drawing 480ma. |
| Navigation |
| Message Index |