... /L; Blue/N; Yellow, Green/G 28Housing Color of Lamp HeadBlack/ Silver (optional)29CertificateCE,RoHS30ApplicationWorkshop, warehouse, toll station, ... by the lower color temperature, like sodium lamp, or higher color temperature, like mercury lamp. This could satisfy the feeling ... source and high efficiency imported LED driver. Compare with sodium lights, it can save electricity around 60%.Environment ...