... exterior 4.Fast refresh rates Photographic Equipment Wireless Studio Flash Kits Manufacturer:Shenzhen Nice Photographic Equipment Co.,Ltd BRAND: Nicefoto MODEL: n ... wireless studio flash, you don't need to take a heavy power pack with you for outdoor photography, it is so ... power280ws480wsPower range7 f-stop (1/64-1)Stroboscopic numbers5,10,15,20,25 timesFrequency1,2,……10 times/sec.Li-ion battery12V ...