Best Seller! Professional Lighting. Hensel Expert D 500 Multivoltage Compact Flash Unit + Includes Profoto Air Radio, Strobe Wizard Plus, FREEMASK Receiver 1/5600 s. flash Kit: Hensel Expert D 500 Multivoltage Compact Flash Unit - 16' Power Cord - Protective Cap - 500Ws Flash Tube - 300W/120V Integra Modeling Light - Clear Glass Dome Very short flash durations from 1/2000 to 1/5600 s Extremely fast flash sequences from only 0.5 s to 0.11 s (2-9 flashes/second) Housing made of aluminum drawn profile with metal side panels Multi-voltage (110 - 240 VAC) high-performance mains switch