The MEAN WELL HLG-40H series is a 40W AC/DC LED driver designed for constant voltage and constant current output. It operates from 90~305VAC and offers models with different rated voltages. With high efficiency (up to 89.5%) and a fanless design, it can operate within a wide temperature range (-40℃ ~ +80℃). The metal housing and IP67/IP65 ingress protection make it suitable for both indoor and outdoor applications. It's ideal for LED street lights, high-bay lights, parking space lights, and other LED lighting systems.