Purchased this after putting poor Roy through hell about details and changing my mind several times. Many, many thanks to him, his service and communication was fantastic. On to the unit, firstly this is a large tail light, check the dimensions if in doubt. It's housed in a steel housing and solidly built. One of my reasons for choosing it. The light contains around 30 LEDs, I didn't count them all but it's in that sort of order, the individual LEDs are noticable. The tail light is bright and on brake application there is a noticable increase in the LEDs brightness. Some cheaper units, are poor in this respect. The only downside I had against the unit was the 2x M6 mounting holes, aren't countersunk. This means that either the mounting fasteners need to be drilled through and show on the number plate, or modified to space the number plate, clear of the mounting plate. I used some 10mm thick race seat foam I had spare and cut to shape across the mounting plate. That allowed the mounting cap screws (not supplied) to be buried into the foam and the number plate sat on top. This worked well enough and didn't interfere with the light function in any way. Wiring is a simple 3 wire affair, black for earth (or negative or common), red for stop light and blue for tail light. The unit has small bullet connectors, I used female all metal connectors to wire to the loom and gently crimped down the connection with pliers. The wire mesh on the light can easily be removed if required by undoing the 2 crosshead screws and slipping the mesh out of the housing. The screws are machine screws and not cheap self tappers. Overall I'm very pleased with the unit, good it's secure in position, bright and works well. Only loses a star as it isn't E marked and the mounting holes aren't countersunk.