ive ordered Some SMD and id plan to fit them all over.
But the main point it do i need resistors on them adding them to a 12v circuit.
Source Material: InGaN
Emitting Colour: UV
Emitting Wavelength (nm): 400-410
Size: 1.2 x 0.8 mm
Intensity (mcd): 60-100
Viewing Angle (deg): 120
Forward Voltage (mA): 3.0-3.6
Forward Current (V): 20-30
Do i need any? if so how do you know, please tell me, i know a little bout resistors, but i dont know how you know if you need them or not.