Lamp Luminous Efficiency(lm/w)
Color Rendering Index(Ra)
Lighting solutions service
Lighting and circuitry design Material
Glass+brass+tungsten+molybdenum Product name
Tungsten Filament Glass Incandescent Bulb Wattage
25W/40W/60W/75W/100W/150W/200W Keyword
Vintage Incandescent Light Bulb