Description 1-10PCS Flicker Free 0-10V Dimmable LED Driver DC18-42V Downstream Power Supply Transformer 300mA 500mA 600mA 900mA 1200mA 1500MA 5-60W CE 0-10V Dimmable 8-level Current Constant Current Drive: 1. Wide voltage isolation, low PF value, no flicker 2. Three digit dialing to achieve 8-speed latest legislation 3. 1000 step Optical depth<0%, ultra-high efficiency>90%, extremely low standby energy consumption<0 4. Compatible with passive dimmers, five port is isolated from enter and output ports and might withstand excessive voltage of 3750V and ESD20KV, guaranteeing self-protection via misconnecting with varied ports CE EMC LVD 0-10V Dimmable Constant Current Drive: 1. Certified huge voltage isolation with low PF payment and no flicker 2. Thousand step Optical depth<0%, ultra-high efficiency>88%, extremely low standby energy consumption<0 3. Compatible with passive dimmers, 4 port is remoted from enter and output ports and may face as much as immoderate voltage of 3750V and ESD20KV, guaranteeing self-protection by way of connecting to different ports incorrectly Passive Dimmer: 1. The Optical intensity is 0% to 100%, the light adjustment is ok with out flicker, like minded with all 0~10V comfortable adjustment drives, and the incorporated substitute can completely shut the drive. 2. The dimmer can face up to voltage of a hundred and eighty V and has an extended lifespan opposed to injury Active Dimmer: 1. Short circuit 0-10V interface protection dimmer at any dimming perspective 2. After the dimmer is activated, it comes with a operating indicator mushy 3. Extremely low standby energy intake of ≤ 0 watts (available in the market with standby calories intake starting from 0 to 0)