The Lumatek Ultimate Pro 600W 400V has been specifically designed to help the hobby grower access the benefits of using electronics to control and power both 240V MH/HPS and professional 400V HPS horticultural lamps. The Lumatek Ultimate Pro 600W 400V automatically detects the lamp connected and then powers that light. A GE PSL 600W 400V HPS Lamp is supplied with the ballast.
The 400V lamps are superior to the 240V lamps traditionally used in the hobby hydroponics and indoor garden markets due to their increased efficiency and greater PAR spectrum output. Photosynthetic Active Radiation (PAR) refers to the part of the light spectrum that plants actually use to photosynthesize and make energy to grow.