YY GN28M Rated External Camera Flash (CY-28ZL)
Powered by 4 x AA batteries (sold separately) - Flash rating: GN28M (50mm) - Configurable settings: 28mm 35mm 50mm 85mm - Speeds: 1/500 ~ 1/30000 sec - Recharge/recover time: less than 9 seconds - Battery runtime (typical alkaline batteries): 108 flashes - Color temperature: 5500K