*Godox SK400II Speedlite Monolight has a Large LED Display, Precise Output Displayed on LCD Panel, 40 Steps from 1/16-1/1. Auto Memory and Recovery of Adjusted Panel Settings | *150W Modeling Lamp Adjusts in 5% to 100% Power Level, Outstanding output stability,no more than 2% shifts when under the same ouput ,Auto memory and recovery of adjusted panel settings. | *Anti-preflash function enables synchronization with cameras that have a one- preflash firing system , Built-in heat elimination fan machine, overheat protection, effectively protect flash safety and extend flash life.The Voltage: 110V | *Built-in Godox 2.4G wireless X system , Godox SK400II Flash Monolight is A Cost-Effective Compact Flash Strobe .With Godox 2.4G X system wireless transmission,Godox SK400II Flash Monolight is compatible with flash Transmitter Godox Xpro, X1,X2, XT32 or FT-16 flash trigger. 2.4G: 16 group, 32 channel | *Using high-quality large capacitors to store electricity, 0.1-1.0s Fast Recycling ,continuous shooting does not wait, providing shooting efficiency. Godox SK400II Studio Strobe Monolight for E-Commerce Product Shooting, Portrait and Lifestyle Photography. In Small and Medium Studio Shooting, It Can Work as High Light, Background Light or Hair Light