1200 VA, 120/277 VAC 60 Hz, single pole and 3-way, WBSD-010M-C1 preset electro mechanical electronic 0 to 10 VDC fluorescent slide dimmer, 0 to 10 VDC LED power supply dimmer, suitable for use with Class 1 or Class 2 wiring white face assembled on device, ivory and light almond color change kits included. The WBSD-010M-C1 can control a load directly or connect to the SP20-RD4 as a manual pushbutton to toggle the load.