This RF-600 Series Macro LED Ring Flash is specifically made for use in macro photography, medical photography, scientific research, and close-up personal photography. To satisfy more demanding photographic requirements, it can deliver steady, continuous semi-light or full light. A feature Wide, Large Guide Number: 21 Color Temperature: 3000K to 9000K (four flash diffuser colors) Support 360-degree off-camera photography by mounting the lamp on a standard tripod. Super bright LED lamp beads made by SMD LCD display that is accurate and easy to use Professional space aluminum made to dissipate heat High-definition visual LCD display comprise eighteen pieces. Extremely bright LEDs Compatible with the majority of cameras made by Canon, Nikon, Sony MI Hotshoe, Olympus, Panasonic, and Pentax supplying full, left, or right light to