1000 Watt Sunmaster Metal Halide 4K Neutral Deluxe Conversion Lamp. A Metal Halide Lamp you can burn in a High Pressure Sodium Ballast. May be burned in any position.
Manufacture Code: LM.1000W.U37.NDX
Initial Lumens: 105,000
Small BT 37 glass envelope.
Sunmaster is the leader in Metal Halide lamp technology. Sunmaster designed this high tech lamp exclusively for the plant growth industry. People using High Pressure Sodium have seen poor growth durring the grow stage of plant life. These lamps can screw into a HPS ballast to improve plant growth durring the grow stage.
— Ships from Portland, Oregon USA.