J command have two lots, the first lot 3 pieces to try for a month, then a second batch of 12 pieces. On the last batch, there is a room HS in l.ouvrant welds on components have not kept. J tries to make a claim with the Secretariat of the supplier. In any 14/15 that works. If there were no worries about this one room, I give 5 stars. C is a transformer that works well for LED MR de12v, mine are well lit and has 9w. Normally I will save a lot on my bill edf compared to 50w Halogen.