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Double Ended HPS & MH Grow Lights

What Are Double Ended Grow Lights?

Double Ended HPS & MH technology is quickly gaining popularity in indoor gardens due to amazing yields and premium results. Unlike single ended mogul based HID grow lights, DE lamps use two wires on either end of the bulb that fastens into the sockets of the reflector. The internal arc tube on a double-ended grow light is typically 2in shorter and much thinner than a standard SE tube. This generates much more light intensity and usable light for your plants.

A DE grow light system produces an intense, white light that has extreme micromole output of over 2,000 micromoles, a wider spectrum, and larger footprint. That’s a pretty impressive output for any grow lighting system.

What Are DE Grow Lights & What Are The Advantages?

DE grow lighting systems have several advantages over the single-ended, the first, is efficiency. DE grow lights operate at a higher frequency that is more efficient to operate. This means that the DE light produces 10-30% more usable light for at a lesser expense. This translates to a lower operating cost which is essential to the commercial grower.

DE also produces a greater spectral coverage and more intense light and at a much broader spectrum than the SE. In other words, more bang for the buck with superior lighting conditions. DE grow lights also produce more PAR and ultraviolet light than traditional SE systems. Double ended grow lights are available in both MH (metal halide) for the vegetative stage and HPS (High-Pressure Sodium) for the flowering stage just like traditional SE lights but are more known for the DE HPS. Many growers run HPS light full cycle, but we often see a mix of both MH and HPS for the best possible spectrum from start to finish.

DE efficiency is basically a matter of eliminating the light degrading wireframing of single ended grow lights because of the terminals at either end. This drastically improves the current flow which results in more actual usable light being produced.

How Long Do Double Ended Bulbs Last?

Due to the stability of the double-ended lamp design, DE bulbs degrade much slower than their single-ended counterpart. Even after 10,000 hours of use, double-ended lamps still put out 90 percent of their original intensity.

Double Ended Grow Lights Require More Space

DE grow lights are preferred by larger commercial growers for the expansion potential they afford, but they do require more space over the plant canopy due to their intensity. This makes DE grow lights much better for commercial applications over the traditional home grower.

Double Ended HPS Yield

Research and side-by-side grow comparisons are showing that double ended HPS lights are increasing yields anywhere from 20-50%. DE grow lights produce significantly more micromoles per watt than traditional high-intensity discharge (HID) mogul based grow lights which means that increase footprints are applicable. The industry standard is about a 4’ x 4’ for a single-ended 1000w light, but with DE grow lights that can be increased to 6’ x 6’ in some cases.

The end verdict is that if you’re thinking of seriously expanding a hydroponic operation using an HPS or MH grow light system, DE would definitely be the route to seriously consider. Although LED Grow Lights and CMH Grow Lights are increasingly flooding the market with new technology HPS/MH DE grow light systems still have the edge through the test of time.

Want to learn more about the benefits of double ended grow lights? Read our learning center article on Double Ended Grow Lights or give one of our experienced growers a call at 888-815-9763.

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