Can only recommend this light, You can easily attach a lot of other spots of URail series without any problems. Various shuttle and glasses there, so that is the light actually timeless and you can easily change individually. Very good set, the price on Amazon is almost unbeatable (ca.81,00 Euro in my time) with the 4 x halogen spotlights and 2 x 1 meter rail + connector and the feed. I have built my 1.8 watt LED lamps and am very happy with it. I read in another review that had the cable not marked by the Affenschaukel (feed) to. If one looks genauerhin times, a yellow thread of the earth through the cable and a blue thread for zero also! One has only to look closely.