HoneyFly Retro Camera Flashlight 25WS 6000K Set-top Flash Light Flashgun. High GN Power Output: GN16 at ISO100 for 25WS flash power with 1/1 level output. Fixed Focal Length: 28mm fixed focal length designed for specific coverage. Flexible Power Options: Compatible with NI-MH and AAA alkaline batteries. Synchronous Flashing: Features optical flash light controlled synchronous flashing. Full Product Inspection: 100% visual inspection performed by packing staff. Customization Available: ODM service allows customization from samples or designs.