This is a set of two COLBOR W100R lights. I own several others. One was tested indoors and is practically new (body). I purchased the W100R kit and only needed the accessories, so the body is new. Both bi-color and RGB functions have been confirmed to work. The other one shows signs of use. Only the bi-color function works; the RGB function is faulty. Both reflectors show signs of use. There is one diffuser. There is only one AC power supply. There is also one protective cover.