... , low power consumption, long service life, high fog-penetrating, Good Quality Sodium Lamp:Characteristics : High luminous efficience, low power consumption, ... Watts: 70W-1000WWith E27, E40, R7S base Application : Available for the lighting at the road, airport, wharf, station, factory, ... mines, etc.You can also visit our website for more information. Thank you. Good Quality Sodium Lamp