Best Commercial LED Grow Lights 2021

Aqua Gardening list some of the best commercial LED Grow Lights on the market. Most of this range of LED Grow Lights is suitable for indoor and outdoor use.

Power and detailed specifcations are shown on this table.

 

What is the best height for LED grow lights?

These are the best heights for LED Grow Lights created with a combination of Aqua Gardening's experience and supplier's information. Whenever the height of the grow light is changed, keep a close eye on how the plants react to prevent bleaching and heat stress. Also check when there is a change in the temperature and humdity of the grow room, or intake air.

 

Aqua Gardening LED Guide - Performance Specifications and Suggested Hanging Heights

                       
LED Fixture Pro Grow UFO 100W Pro Grow UFO 200W Pro Grow UFO 300W Pro Grow UFO 500W HLG 240 3500K HLG 550 3000K HLG 550 3500K Lumatek Zeus Pro 6 bar [600W] Pro Grow 6 Bar [630w] Pro Grow 8 Bar [680w] Future Gardens 9 bar [720W] Lumatek Xtreme 10 bar
Power Consumption 100W 200W 300W 500W 240W 480W 480W 600W 630W 680W 720W 1025W
Total PPF* 210 µmol/s 420 µmol/s 620 µmol/s 1050 µmol/s 651 µmol/s 1179 µmol/s 1179 µmol/s 1620 μmol/s 1720 µmol/s 1950 µmol/s 2370μ/mol 2925 µmol/s
Photon Efficacy 2.1 µmol/J 2.1 µmol/J 2.1 µmol/J 2.1 µmol/J 2.63 µmol/J 2.47 µmol/J 2.47 µmol/J 2.7 μmol/J 2.73 µmol/J 2.85 µmol/J 2.9 µmol/J 2.9 µmol/J
Colour Temp (Kelvin) 4 K 4 K 4 K 4 K 3 K 3 K 3.5 K 4 K 4 K 4 K 3.5 K 4 K
CRI 90 90 90 90 n/a n/a n/a n/a 91.8 91.8 90 n/a
Coverage / m² 0.5 m² 0.75 m² 0.9 m² 1.1 m² 0.6 m² 1.0 m² 1.0 m² 1.5 m² 1.5 m² 1.5 m² 1.65 m² 1.8 m²
Dimensions, W x L (mm)         630 x 195 660 x 500 660 x 500 1091 x 1180       1091 x 1180
Weight (kg)         4.5 9.5 9.5 13.5 14.5 16 13 18
Water Resistance IP55 IP55 IP55 IP55 Oil-coated Oil-coated Oil-coated IP65 IP55 IP55 IP65 IP65
Output PPFD (µmol/ m²/ s) 342 @ 30cm 730 @ 30cm 1250 @ 30cm 1297 @ 30cm N / A N / A N / A 1000 @ 30cm 985 @ 30cm 1150 @ 30cm N / A N / A
* Note Full daylight sun at noon in the summer is around 2000 μmol/m2/s, however aim for a minimum 500 μmol/m2/s during flower stage
                       
LED grow light distance height chart - Guide to Recommended Height of LED Fixture Above The Canopy @ 100% Intensity - CO2 usage not considered
                       
Clones 95 cm 110 cm 120 cm 150 cm n/a n/a n/a n/a 150 cm 160 cm n/a n/a
Mother Plants 20-15 cm 30-45 cm 80 cm 100 cm 40-50 cm 50-60 cm 50-60 cm 60 - 110 cm 60 - 110 cm 85 - 115 cm n/a n/a
Growth Phase                        
Early Vegetative 75 - 55 cm 100 - 90 cm 100 cm 120 cm 90 - 100cm 100cm 100cm 120 cm 120 cm 130 - 150 cm 150cm 180 cm
Late Vegetative 55 - 35 cm 90 - 75 cm 90 cm 110 cm 75 - 90cm 80-90cm 80-90cm 110 cm 110 cm 115 - 130 cm 135cm 150 cm
Flowering Phase                        
Week 1 45 - 30 cm 80 - 70 cm 80 cm 100 cm 70 - 80 cm 80cm 80cm 110 cm 110 cm 115 - 125 cm 120 cm 120 cm
Week 2 35 - 20 cm 75 - 55 cm 70cm 100 cm 55 - 75 cm 70cm 70cm 90 cm 90 cm 95 - 115 cm 100 cm 120 cm
Week 3 20 - 15 cm 55 - 45 cm 70cm 100 cm 45 - 55 cm 60cm 60cm 80cm 80cm 85 - 95 cm 100 cm 120 cm
Week 4 10 cm 45 - 35 cm 70cm 80cm 35 - 45 cm 50cm 50cm 60cm 60cm 70 - 85 cm 70cm 100 cm
Week 5 - 35 - 30 cm 55cm 70cm 30 - 35 cm 30-40 cm 30-40 cm 50 cm 50 cm 70 cm 70cm 100 cm
Week 6 - 30 - 25 cm 50cm 60cm 25 - 30 cm 30-40 cm 30-40 cm 50 cm 50 cm 60 - 65 cm 70cm 100 cm
Week 7-9 - 20 cm 50cm 60cm 20 cm 30-40 cm 30-40 cm 40 cm 40 cm 55 cm 70cm 100 cm
                         
Link to our website: UFO 100W UFO 200W UFO 300W UFO 500W HLG 240 3500K HLG 550 3000K HLG 550 3500K Zeus Pro 6 bar Pro Grow 6 Bar [630w] Pro Grow 8 Bar [680w] LED 9 bar [720W] Xtreme 10 bar

 

What is PPFD?

So what the hell is this PPFD? Full daylight sun at noon in the summer produces PPFD of about 2000 (μmol/m2/s). But we don't need to shine that much light on our plants. Often manufacturers quote PPF - this is the maximum amount of light that comes out - measuring right close to the light source, and it isn't much use to compare lights with, like lumens. PAR is a measure of the total amount of light that reaches a plant during the day - this measurement is also not easy to measure and use. Heavy flowering plants need different amount of PPFD light depending on their size and stage of growth.

  • For Seedlings - 200 to 300
  • For Veg Phase - 300 to 600
  • For Flower Phase - 500 to 1000
  • Autoflower - 300 to 600 for whole life

 

So how do you get the right light with an LED Grow Light?

It all depends on your light fixture and height you are hanging it above the crop / canopy. LED lights are commonly compared at 30cm above the crop height, but at this height there is not much spread and bleaching commonly occurs. Aqua Gardening sells Lumatek Zeus Pro 6 bar [600W] and Pro Grow 6 Bar [630w] which are great for regular hobby growers because they deliver enough light for a flower phase at between 50 and 80cm above the crop - see PPFD chart below. They can almost cover a 1.5 x 1.5m area with more than 400PPFD, but they have a spike in the centre of over 700 so the plants in the centre will grow faster and rotation will be required - unless the grow has multiple lights and can overlap the light spread. At 1.5m height, these LEDs can do Seedlings and Veg stages over up to a 1.8x1.8m area. This is why the 8, 9 and 10 bar LED grow lights have evolved - fixed high they can deliver sufficient PPFD especially with multiple fixtures working together.