Use the wireless PG6S for an accent light to illuminate small areas. It has a GN of 20. It measures 2-1/2" high by 2-9/16" in diameter.
Flash can be used direct or behind objects to provide a little extra light. Can sit vertically or at a 45 degree angle, and can also be used with the PG820MT mini tripod.
Flash output is fixed at full power. Unit has a test button, ready light and on/off switch. Requires 2 AA batteries (not included) and recycles in 4 to 6 seconds.