5mm Assorted LED w/ Resistors (5 Colors, Pack of 25)
- Contains 25 LEDs of 5 kinds
- Comes with some 200 ohm, 1/4-watt resistors for making connections.
- Great for electronic and electrical experiments
How to use LEDs correctly: If you use a power supply such as a USB port, always use resistors to reduce the current under the specified level. Don't apply excess voltage: the brightness will only increase by a small amount but the LED may fail sooner. Always check the polarity of the light emitting diodes when you connect them.