Characterized by its compact and easy-to-use design, the Chang Yin CY-20 is compatible with nearly all digital as well as traditional cameras with hot shoe. The lamp of this Chang Yin flash features an adjustable pitch angle, making it ideal for either fill-in flash or bounce-flash use. This shoe-mount flash can be aimed at angles of 0, 45, 60, 75, and 90 degrees to accommodate proper lighting distribution. It has a guide number of 65.6 ft at ISO 100. Color temperature is 5,600 K. This Chang Yin flash has an angle of illumination of 60 degrees horizontally and 40 degrees vertically. Furthermore, the Chang Yin CY-20 requires only two AA batteries for power, rendering more energy-efficient performance. Recycle time of this shoe-mount flash is 7 seconds and flash duration is 1/1,000 second. Weighing in at only 3.5 and measuring 65 x 60 x 98 mm, this lightweight Chang Yin CY-20 makes an extremely portable flash gear. A 2.5 mm PC sync port for added convenience rounds out this functional flash unit.