Prompt delivery in perfect condition. Lights easy to install (each light has two equal length 2 wire cables with plugs on the end for easy connection to the next light or to the driver) just 8.5 mm hole to be drilled for each light. A short detachable link cable that has a connector that won't go through the hole is supplied with each light. Disconnecting it allows you to feed both cables through the hole then reattach the link cable again behind the plinth board. The driver has four connection sockets that cater for four circuits of daisy chained lights giving great installation flexability .