ETC S4LED-SWD17 Led Smooth Wash Diffuser - 17.5-Inch / 445-Millimeter - Black 100867384 The C 555 L is

The C 555 L is the only version available and can be used with the B 29 L battery power supply

SKB 1SKB-R2411 Roto-Mold 24-Inch Tripod case

And artists using complex

Polar Pattern: Cardioid (unidirectional)

ETC S4LED-SWD17 Led Smooth Wash Diffuser - 17.5-Inch / 445-Millimeter - Black 100867384 The C 555 L isETC S4LED SWD17 Led Smooth Wash Diffuser 17. 5 Inch 445 Millimeter Black This 17. 5" LED Smooth Wash Diffuser in black color is designed for use with ETC's Source Four LED Series 2, Series 3, ColorSource Spot, Spot Jr, Source 4WRD, and 4WRD Color fixtures. Placed into the gel frame slot of the lens tube, this diffuser works great when extra smooth blending of multiple LED fixtures is required.