I havent a clue about electronics really (all I can do is the soldering iron bit ) so I need someone to just give me the right maplins codes. I tried using that resistor guide, but Maplins talks about forward reverse voltages and all sorts of rubbish Had my first attempt at modding my boomie 2k, but I want higher power LED's and Im going to change them around a bit. So If someone could just post up the codes, obviously its a 5v power supply as its on USB. 5mm and 3mm green LEDs please and whatever resistors they need. And if you are wondering
Let's say you have a LED at 20mA and 3 volts. Excess voltage: 5V - 3V = 2V What resistor to use: R = U / I R = 2V / 0,02A R = 100 Ohms So what you need is a 100 ohm resistor. The color code for these is brown black brown.
