The Mini Pioneer Series is best for portraiture or object shooting, providing flash power from 100WS to 300WS. With petite and compact design, the 250DI and 300DI are equipped with buzz function. The modelling lamp could be adjusted from full to proportional of the power range. With pre flash system, it could make synchronized flash together with common camera that is with red eye pre-flash function. The series is ideal in professional studio, providing light source as high light, background light and hair style light. The aluminum housing is robust and durable, and could be used together with umbrella, soft box, honeycomb grip and snoot. This Series Contains: 120, 160, 250DI, 300DI The product is of high quality, stability and reliability and it is a guarantee for the ideal light source. Major Characteristics: 1. The modeling lamp could be automatically turned off after the flash and be controlled independently, which has the same effect as a large sized flash light. 2. It equips with pre flash system. It can fire on the second flash to make synchronized shooting. 3. The modeling lamp can be set at full brightness or proportation to the flash output. 4. It equips with buzz function. Technical Data: Model: 300DI Flash Output: 300WS Guide NumberISO 100/ft: 58 Color Temperature: 5400±100K Operating Voltage: AC 220V 60Hz Flash Power Control: stepless Modelling Lamp: 75WS( adjustable) Recycle Time: 0.5-2s Flash Triggering Mode: Sync cord, slave, Test button Triggering Voltage: 5V DC Flash Duration: 1/2000-1/800s Fuse: 5A Sync Distance: 36ft