F.A.Q.
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Any strong light source can be harmful to your eyes if you look directly into the light source. LEDs are frequently tested and approved to determine that there is no significant blue light hazard to operators. It is recommended that you purchase some grow room glasses to wear when working in a lit zone and these can be purchased from this website
The short answer is no they don’t. The long answer is that LED’s are a lot more efficient than HPS and require less watts of electricity to achieve the same light output. Therefore they generate less heat because they use less electricity.
No they are not. These are narrow wavelength lights that will grow plants well but they lack the higher yield and plant quality that you get from broad spectrum lights in indoor farms or grow rooms / tents. The narrow wavelength spectrum is good for greenhouses where sunlight provides the broad spectrum plants thrive on.
No they are not. The fans can fail and then the light will fail. Passively cooled lights are engineered to provide excellent heat dissipation and has less to go wrong.
No they are not. As soon as you switch from one setting to the other you reduce light output significantly. Plants thrive on light. If you reduce the light output you reduce plant growth. Spectral shift of narrow wavelength lights in this way simply compromises growth rather than enhances it
Absolutely not. As a rough rule of thumb an LED light that draws or consumes about 70% of the power of an HPS will match it for light output. This is because the efficacy of LEDs is that much higher than HPS. This rule only applies for LEDs that are achieving 2.6 µmol/J or higher in terms of efficacy. A light with 120 x 10W chips with fan cooling will be achieving about 1.6 µmol/J and therefore will only match a 150W HPS.
No they can’t. LED lights can be broad spectrum but only the sun can be full spectrum.