The set consists of 3 spotlights a 20 Watt lamps, transformer and cables with plug-in system. The radiators require a 60mm minimum depth of 22mm, hole. In furniture it is so difficult because the material eg when hanging cupboards in the kitchen max. 19mm has - here a double closet floor is required. The transformer can be loaded 20-60 watts, which means you could also only one or two spotlights hang, here you are very flexible. But beware: The power supply of the transformer has no mains plug but merely wire sleeves at the end of the cable. This should have been mentioned in the product description, a purchase criterion may be. One has a Schuko plug acquire additionally if the spots are built not just in the false ceiling so if necessary.
Fatzit:
Would I buy it again, for craft savvy people top Lighting set at an unbeatable price!