Base Type
B22, E26, E27, E40, E27/B22 Lamp Luminous Efficiency(lm/w)
Color Rendering Index(Ra)
Lighting solutions service
Lighting and circuitry design, Project Installation Luminous Efficiency Of LED Chip
Product Name
parts raw material E14 E27 B22 3w 5w 7w 9w 12w 15w 18w led bulb