Dimmable constant current led driver for leds application High efficiency, up to 85% Protection: short-circuit with hiccup mode, overload Natural air convection Class ii, no fg Plastic case, ip20 for indoor use only Optional multi-dim function, suitable for led lighting application High current accuracy to make led lifetime longer Functions: 100 to 240v ac switch dim: On/off: short push (50 to 500ms ) on switch Stepless dimming: long push and hold (>500ms) on switch For tuning of light level: with every 2nd long push, light level goes opposite direction Built in with permanent memory Synchronization: no limitation on number of drivers when connected to same switch 1 to 10v dc dim: 1 to 10v dc dimmer and ext pot dimmer Multi-current set: 300, 450, 500, 650 and 700ma select, set dip switch Memory function: power offer memory function to memorize the light intensity, soft light on to memorized intensity, nice to eyes Dim range and effect: 0.3 to 100% stepless dim to make light intensity vary smoothly, no flickering Warranty: 2 years Package size:45.5x39.5x22cm Gross weight:20.0kg Qty:100pcs/carton