4u style energy saving lamp:
1.Color rendering index: Ra>80
2.Base: E14/E27/B22/E26
3.Plastic housing: PC/PBT /PP

4u style energy saving lamp:

1.Tube diametre:7mm/9mm/12mm

2.OEM service: available

3.high luminous,excellent color rendering index

4.Quick start ,no glimmer ,soft light

5.Up to 80% energy saving than incandescent bulbs,green light protect environment