Perennial Whisper wage why is 277 volts used for lighting controller sail breathe
How to Wire a 208v Light Fixture | 208v Lighting Wiring Diagram
How is the US 277Vac input voltage derived and why is it used? « TDK-Lambda UK Blog
What is 277 volt
How to Wire 277V & 480V, 1 & 3-Phase Main Service Panel?
What is 277 volt
100FT Construction String Lights, 10 Sockets, E26 Base, 100W, 10500LM, 100- 277V, Linkable Jobsite Lights, Construction Temporary Work Lights, Attic, Basement for Indoor & Outdoor Use, UL Listed - Amazon.com
277V Indicator Light-8mm Mini IP67 277V Indicator Light
GE Lighting UltraMax Proline Electronic Ballast, 120/277 Volt Instant Start Ballast, Normal Ballast Factor, Ballast for Fluorescent Light (2) or (1) Lamp T8 - Electric Plugs - Amazon.com
LUXRITE 1 ft. 100/120/150-Watt UFO High Bay LED Black Shop Lights, Up to 22500 Lumens, 3CCT, IP65,120-277V, UL Listed LR41520-1PK - The Home Depot