Education

Do Black Dog LED grow lights work with 220V / 240V? 277V? 347V?

Yes, our lights will work with 110/120 volts and 220/240 volts; PhytoMAX-4 SC models even support 277V, and PhytoMAX-4 SX lights run at 347V-- all ...

Photosynthetic Active Radiation (PAR)

What it is, and Why it Matters Photosynthetically Active Radiation (PAR) refers to one way of measuring the range of light wavelengths (400–700 nan...

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How many plants can I grow under a light?

The answer depends entirely on the size of the plants! The number of plants that can be grown under a light is the number that would fit in the app...

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Do LED lights cause magnesium deficiency in plants?

Is it normal to see purple streaks on the stems / petioles? No, LED lights do not cause any kind of nutrient deficiency; purple streaks on stems a...

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The Efficiency Myth

The "Efficiency Myth" and the Difference Between 1W, 3W, 5W, 10W and COB LEDS. Because LED technology is so new, it is often hard to understand the...

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What Is Photosynthesis?

Photosynthesis Explained for the Indoor Gardener Although there is more than one type of photosynthesis, oxygen is released during the photosynthes...

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Are multiple-light discounts available?

Yes, we offer multiple-light discounts! The amount of the discount depends on the number of lights and which model(s) you need, as well as how quic...

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What is the efficiency of PhytoMAX-2 LED grow lights?

The efficiency of LED lights depends on how you measure it. There has been a long-standing "standard practice" in the lighting industry to measure ...

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How many LED grow lights can I run on a circuit?

The answer depends on what size lights, what voltage the circuit is, and what the circuit breaker's amperage is. It is important to never overload ...

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How high above the plants do I need to hang the light?

In order to allow the light to "spread out" and cover your entire growing area, it is important to have your Black Dog LED grow light the correct d...

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How much will it cost to run LED grow lights?

To determine how much it will cost to run our LED grow lights, it is important to know your electric utility rate- how much they charge you for a u...

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How much heat will the lights produce?

How much cooling/AC will I need? Every electric appliance puts off heat, including LED grow lights. While most of the energy coming out of our fixt...