Hello,
I am completely new to electronics and I'm trying to re-create a simple iron man arc reactor for new years eve.
I have bought 12 blue super bright LED's which annoyingly I found out need 5v and are 30mA
http://www.maplin.co.uk/3mm-high-bright-blue-leds-35734
I plan on powering them with a PP3 9v battery and wiring them in series and then using a transistor to make sure I don't blow the LED's.
My question is which transistor do I need to use?
I am completely new to electronics and I'm trying to re-create a simple iron man arc reactor for new years eve.
I have bought 12 blue super bright LED's which annoyingly I found out need 5v and are 30mA
http://www.maplin.co.uk/3mm-high-bright-blue-leds-35734
I plan on powering them with a PP3 9v battery and wiring them in series and then using a transistor to make sure I don't blow the LED's.
My question is which transistor do I need to use?