The RM 7221DS 7.0 x 7.0' Chromaflex All-In-One Bundle with Small Dual LiteRing builds on the remarkable success of the original and combines features that make it more versatile than ever! The included controller allows you to change the colour from green to blue (and vice versa) with a simple flick of a switch and offers 256 dimming increments from 0 to 100%. It is powered by 12VDC via the included universal power supply or by optional external or camera batteries. The LiteRing itself also features a diffusion filter over the LEDs. As the LiteRing fits lenses with a diameter of 72mm and below, Reflecmedia generously provides adapters of 62, 58, 52, 43 and 37mm to ensure maximum compatibility. These specially designed adapter rings simply screw into the filter thread at the front of the lens, then the LiteRing is placed on the adapter and locked with a single screw, significantly reducing setup time associated with conventional keying. Product highlights: - Selectable blue and green LEDs - 7.0 x 7.0' Chromaflex background - Chromaflex background support - BaseMatte tile - Small Dual LiteRing, 5 adapters