Unlike what we've seen in the emerging trends with supplemental greenhouse lighting systems whereby 1000 watt DE HPS (Philips) lamps are being specified to work in conjunction with multiple rows of horizontal LED strips (Lumi-Gro), Inda-Gro took a different approach and saw the benefits of bringing the lights closer to the plants, to reduce to the number of hours the plants might need supplemental lighting to achieve optimum levels of crop DLI and by incorporating a proprietary vertical trolley systems and controls design that reduces shadowing effects by the lamps, meets crop DLI, is energy efficient, long life, low heat and enables the commercial greenhouse gardener to manage the photoperiod and Pfr functions from a single fixture.
The VDH process benefits traditional vertical walled trellis systems or may be better suited for vertical gardens whereby the vertical garden trellis system is built in an A frame construction to match the inversely proportional geometry of the VDH frame construction. This will allow optimum DLI values be met first by the sun followed by the with the ability to consistently manage the supplemental lighting systems by maintaining parallel geometry throughout the vertical light rail process. A single local area sensor mounted on the top of the junction box will control both lamps 50-100% light output with the commensurate savings in connected load. A high/low uMol settings switch allows the local area sensors operational sensitivity to be set for thresholds of:
High Setting: 300 to 600 uMol/m2-s (Full bright if < 300, dimmed to 50% output if > 600)
Low Setting: 200 to 400 uMol/m2-s (Full bright if < 200, dimmed to 50% output if > 400)
The VDH system comes wired and nearly completely assembled with the end user required to put in 4 bolts to install the top systems bracket. The VDH will run on any 50/60Hz system that supplies between 120-277v AC. With a 10 year warranty on lamps and drivers, weighing in at 40 lbs and allowing instant on/off as well as step dimming controls this may help to make a difference in how the world see's supplemental greenhouse design going forward.