- Power Draw is measured with a Kill-a-Watt after a 30 minute warm-up.
- Average PPFD is an average of all measurements taken from all heights (6" to 36" in 2" increments).
- Bang for Buck is calculated by multiplying the Average PPFD by the surface area of the grow space (square meters) and dividing by the price of the lamp. Higher is better.
- Average PPFD is an average of all measurements taken from all heights (6" to 36" in 2" increments).
- Bang for Buck is calculated by multiplying the Average PPFD by the surface area of the grow space (square meters) and dividing by the price of the lamp. Higher is better.
| Brand | Model | Test Space | Power Draw (AC Watts) | Average PPFD (µmols/m2/s) | Price (USD, 2021-08-10) | Bang for Buck (Avg. Usable PPF/$USD) | PPFD Charts |
|---|---|---|---|---|---|---|---|
| ChilLED | Growcraft X3-330 | 2x4 | 330 | 973 | $579.00 | 1.24 | View Charts |
| HLG | 650R Diablo | 5x5 | 639 | 687 | $1,099.00 | 1.45 | View Charts |
| HLG | 600 Rspec | 5x5 | 606 | 605 | $775.00 | 1.81 | View Charts |
| HLG | Scorpion Rspec | 5x5 | 629 | 643 | $999.00 | 1.49 | View Charts |
| HLG | Scorpion Diablo | 5x5 | 660 | 736 | $1,299.00 | 1.31 | View Charts |
| Migro | Aray 4 Pro | 2x4 | 264 | 754 | $429.00 | 1.30 | View Charts |
| Spider Farmer | SF1000 | 2x2 | 93 | 443 | $135.99 | 1.21 | View Charts |
| Spider Farmer | SE7000 | 5x5 | 632 | 645 | $899.99 | 1.66 | View Charts |
| Spider Farmer | SE7000 | 4x4 | 632 | 958 | $899.99 | 1.59 | View Charts |
| Viparspectra | XS1500 | 2x2 | 152 | 710 | $119.99 | 2.19 | View Charts |
| Vivosun | VS1000 | 2x2 | 98 | 457 | $109.95 | 1.54 | View Charts |