The CUlight RT 500C can control the CUlight flash units FR 60 and FR 36 wirelessly as a slave, independent of the camera. Additionally, flash units from other manufacturers that do not have this wireless control integrated can be operated by the transmitter when paired with the CUlight RR 500 receiver. The wireless control of the CUlight RT 500C operates at 2.4 GHz and can be used in TTL mode, manual mode, or strobe mode. Up to 5 groups and 32 channels can be programmed, allowing multiple flash units to be triggered simultaneously. In manual flash mode, the triggering system can also be used with all studio flash units. The illuminated LCD display makes operation easier. The CUlight RT 500 is available for Canon, Nikon, Sony, Olympus/Panasonic, and Fujifilm. A USB port is included for software updates if necessary. A sync cable socket is also included in the CUlight RT 500.