IP67 waterproof (dust-tight and protected against the effects of temporary immersion in water). Not submersible. Epoxy encapsulated, with insulated plastic case. Working temperature: -25 to +70°C. Bare wire cables in and out. Protections: Short circuit / Overload / Over voltage. Overload protection type: hiccup mode, recovers automatically after fault condition is removed. Full load burn-in tested. Built-in electromagnetic impulse filter. Low ripple noise. Universal, auto-sensing: accepts 90 to 264 input without adjustment. No minimum load and no load balancing required. Proven reliability and rugged housing. UL8750, CSA C22.2 No 250.13-12 UL879,CSA C22.2 No.207-M89, IP67 approved. Do not use a dimmer on the primary side.