Dual Arc Plant Grow Light
June 10, 2018
If you are intensively gardening under lights, and are using grow tents or a greenhouse, dual arc lamps can be a good plant lighting choice. Dual arc grow lamps are hybrid HID lamps that blend the benefits of the cooler MH (metal halide) light spectrum with that of the warmer HPS (high-pressure sodium) lamps.
You can see both a MH and an HPS lamp in this Ultra Sun Dual Arc bulb.
PC: Sunlight Supply, Inc.
For example, a 1000-watt dual arc lamp combines a 600-watt MH and a 400-watt HPS lamp within the same bulb.
