Outstanding output stability,150W Modeling Lamp Adjusts in 5% to 100% Power Level, No More than 2% Shifts When Under the Same Output. Built-in Godox 2.4G wireless X system with outstanding functions.enabling synchronization with cameras having a one-preflash firing system. Precise Output Displayed on LCD Panel, 40 Steps from 1/16-1/1. Adjusted parameters intelligently remembered after 3s and automatically recovered after a restart. Compact and lightweight body with Bowens mount to add almost any studio light shapers.Excellent Heat Dissipation,Built-in Cooling Fan to Better Protect the Flash Tube, and Extend the Service Life Effectively. EU Standard Large High-Quality Capacitors Provide Super Power, Stable Voltage and Precise Output, Which Makes the Flash Charge Faster and Last Longer.