“These are easy to fit with a choice of two types of securing clips available. You can either top fit or side fit the lamps. There are several sizes available and they all link together and without using the link cables. One of the supplied link cables is used to connect to your mains electricity and therefore a transformer is not required. These lights are quite bright and the whole system is a very neat and not too hard on your pocket. These are highly reccommended from me.”