Leviton AWSMT-7DW Renoir II Preset Slide Dimmer, Ballast 0-10V, Thin Heat Sink, Narrow, 16A, White Linear dimming 120-277VAC, 60-Hertz No minimum load Any ballast requiring 0-10V "sinking" control Flicker free, smooth, and continuous dimming, reduces light fluctuations from line-voltage variation and maintains the power delivered to the lamp