Strip Lighting

[Deigh]

I've just been trying my hand at installing strip lighting in my wife's glass display cabinet. The results are quite pleasing but I need to know a bit more about the product.......The self adhesive strip requires a 4 pin connector. One pin is marked 12v and the others red, green and black.
What is fed to those three coloured pins?
Deigh

 

[Harald Kapp]

These are separate connections for the red, green and (I suppose) blue (not black) LEDs within the strip. You connect these pins to ground (0 V) of teh 12 V supply to turn the respective color on. Usually an RGB controller (see e.g. here) is connected to these pins to allow control of different light setups and/or effects.
Without controller you'll get constant light of a color defined by which pins you connect to ground. For "white" connect all three to ground.