... ) Model: 1,000W 2) High quality Sodium lamp for plant Key Specifications Rating Voltage: ... 35W, 50W, 70W, 100W, 150W, 250W, 400W, 600W, 1000W High in luminous efficiency, less in power consumption, ... and strong in fog-penetrating capacity High-pressure sodium lamp: Outer flip is of no need ... airport, wharf, factory and mine Common high-pressure sodium lamp: High in luminous efficiency, color index Ra= ...