Question - Can you use LED with HPS?

Answered by: Marilyn Ramirez  |  Category: General  |  Last Updated: 24-06-2022  |  Views: 1116  |  Total Questions: 14

Hybrid lighting systems, consisting of High Pressure Sodium (HPS) and full spectrum Light Emitting Diode (LED) grow lights, can be used together to grow and flower plants – outperforming HPS-only lighting systems. You can switch but keep the HPS higher than normal for a bit to allow the plant to adjust from the lower W LED. HPS is about twice as electrically efficient as metal halide. Photosynthetically Active Radiation (PAR) is what really matters to plant growth, and delivery of usable PAR is better with HPS than metal halide. The enhanced blue in metal halide does not lead to increased plant growth compared to HPS in the “veg” stage. LED grow lights run much cooler than HPS resulting in an obvious set of benefits for the indoor grower. LED grow light units typically come as all-in-one fixtures, which are easier to work with in tight spaces. They can also be placed closer to plants in confined areas with very little risk of heat damage. TIP: Place grow lights directly over plantings to mimic natural sunlight. As a rough guide, incandescent grow light bulbs should be at least 24 inches over your plants. Fluorescent and LED lights have a lower heat signature, so they can be placed 12 and 6 inches over plants respectively.

https://www.growbarato.net/blog/en/many-plants-per-light/

2 month plants should give about 40g per plant, so with about 9 you'll be able to easily fill a square meter and get up to 400g per 600w light. 3 month autoflowering plants grow much bigger, however, so you should only plant 4 per 600w light.

https://growlightinfo.com/grow-lights-distance-from-plants/

So, for example, a 1000w HPS distance from plants for bloom would start at 36 inches and gradually move closer.

https://www.rollitup.org/t/1000w-hps-how-many-plants-per-light.800650/

Everybody has their own way and in the end it comes to what works best for you, but I have read that most of the people use 6-9 plants per 1000W, while in the other hand other people like to have more smaller plants, hence the sog and scrog method. For example, SeeMoreBuds had about 50-100 plants per 1000W.

https://www.quora.com/Can-I-use-normal-led-lights-to-grow-plants-indoors

You can use any LED Lights to grow plants, but that doesn't mean your plants will grow healthy or efficiently. So the short answer is yes. You need to ensure your plants are receiving light from a full spectrum LED light and that only comes from the best LED grow lights.

https://growlightinfo.com/led-lights-for-flowering-stage/

You may have heard that one big drawback of LED grow lights is flowering time. They simply take longer to flower. They often don't have enough power to bloom, or they simply have an ineffective spectrum. The reason HPS bulbs flower so well is a light spectrum that is heavy in red.

https://blog.lightingsupply.com/blog/still-need-to-replace-high-pressure-sodium-bulbs

High pressure sodium bulbs ("lamps") are an old standby for lighting that's still used today in spite of so much talk of LED lights. LEDs, however, are better able to control their light, which is why a lower-watt LED can replace a higher-watt high pressure sodium bulb.

https://www.blackdogled.com/blog/light-cycles-explained/

Rather than bogging down in botany, keep your growing simple by following three guidelines: use full-spectrum LED grow lights for all cycles, keep them on at least 18 hours during vegetative growth, and cut back to 12 on and 12 off for flowering. Then sit back and enjoy your harvest.

https://homeguides.sfgate.com/far-plant-should-hps-bulb-be-88976.html

Go the Distance HPS lights should not be placed inches from the plants, as you would place fluorescent lights; you should set HPS lamps higher, generally between 5 and 8 feet from the plants. Whether you have a reflector with your HPS light makes a difference for how close you can keep it from the plants.

https://www.growweedeasy.com/hps-grow-lights-setup

HPS lights can be used for the entire grow and will still get great results. Modern ballasts often allow a grower to interchange MH and HPS bulbs, but it's important you look for this feature if you want to use a combination of both MH and HPS.

https://www.growweedeasy.com/5-reasons-why-hps-lights-dominate

HPS grow lights produce fast growth, fat dense buds and consistently big yields. They efficiently turn electricity into light, and they give off a type/color of light that promotes better flowering.

https://www.royalqueenseeds.com/blog-cannabis-cultivation-the-light-spectrum-and-ways-to-raise-thc-l

HOW THE LIGHT SPECTRUM AFFECTS GROWTH Vegetative Stage – “Blue” light for healthy leaves (range: 400-500nm; ideal: 460nm) Flowering Period – “Red” light for giant buds (range: 620-780nm; ideal: 660nm)

https://www.leaffin.com/grow-lights-watts-1000w-600w-400w-250w-150w/

Top 600-Watt LED Grow Lights 600w LED Grow Lights Actual Wattage Lifespan VIPARSPECTRA 600 LED Grow Light 276w 100, 000 hrs Bestva 600w LED Grow Light 125w 100, 000 hrs King Plus 600w LED Grow Light 120w 50, 000 hrs ColoFocus 600w LED Grow Light 110 - 120w 50, 000 hrs