I suppose you could. I believe it supplies 6V, but I don't know what current it can supply. However, when the light is turned on, the main display dims - as it expects that you are riding at night when a dimmed display is appropriate. When the display is dimmed in daylight, it is unusable - for me anyway. I don't know how to defeat the dimming "feature".Can I use this connection for other applications other than for a light?
Very good advice. I got a BBS02 kit with light and the light cabel was wired with the wrong polarity i.e. the black and red wires were around the wrong way on the connectors. I had to pull out the multimeter to figure this out. In the end I cut the connectors off, stripped and soldered the wires together with the correct polarity and all works fine now (lucky I'm handy enough to do this but I imagine a lot of people would be stuffed!).Yep these are light wires - but take note: the polarity is not marked. My kit came with a light, so I connected it all up, but the light did not work. I switched the wires and it works fine. So don't do what I did - that is, don't tie down the wires until you verify that the polarity is correct.