The Quantum Instruments Qflash TRIO Flash enables you to control both on- and off-camera lighting in an effortless manner. It features a bare bulb design and delivers a total power output of 80 Ws. The Sensor Limit function is essential for preventing blown-out highlights whenever the background is far, and your subject is close. The audio and visual aids blink and beep for capturing accurate, over, or underexposed pictures. The Program Mode lets you set a maximum of eight presets to gain quick access to commonly used settings. For added shooting flexibility you can tilt the flash upward up to a 90° angle and rotate it right and left up to 180°. Use the inbuilt FreeXwire radio system for performing a wireless TTL flash operation at a distance of up to 500 ft. Powering this flash system are the Turbo series battery packs. Additional features in this flash include a small LCD and a 1.5-second recycle time at full power. This flash is compatible with a number of different cameras.