The T45 GS Solar LED light bulb is our patented technology that illuminates a warm-white (2700K) color temperature and boasts a 10-year lifespan in Gama Sonic outdoor solar-powered lamps and light posts. This vintage Edison LED filament light bulb creates a bright 360-degree light spread and replicates the appearance of a traditional AC light bulb. Do not use this bulb in regular AC or low-voltage lighting fixtures.