●Light up your life, 50 12 V 5 mm wired LEDs, 7 inch long red and black wires. ●Pre-wired with built in resistor, well soldered and heat shrunk, ideal for hobbyists, RC cars, boats, custom designs, DIY car parties and parties with multiple lighting projects, etc. ●Colors: white, 12VDC 5mm warm white; viewing angle: 20 degrees, built-in resistance pre-wire. ●Suitable for lighting, wedding decoration, DIY calculation, fashion design, prototype modeling, power sculpture, etc ●You can distinguish the polarities by the colour of the wire. It is labelled on the box so you can see clearly.