
B&Q sell quite cheap halogen lights for kitchens, bathrooms etc. They consist usually of a bar, transformer, wiring and several bulbs and holders. If you take the bulbs seperately they are 12 volt. I have two wired up from my leisure battery. All you need do is drill a hole of the appropriate size, spring in the holder and wire up! Easy and cheap

Just make sure you are aware of the heat they give off and therefrore any fire hazard

