... source LED high bay lighting to replacement Philips high pressure sodium lamp :Specification:1) LR-DD50WM01X 2)Power: 50W3)LED ... Efficiency: > 95%High Power: >0.95Replacement: 100W High Pressure Sodium Lamp3 years warranty,CE&ROHSEnergy saving: with low power consumption ... 70W, 150W High Pressure Sodium LampLong lifespan: 30,000hrs, which means less replacement as ...