BDL Labs

Research from Black Dog LED

  1. How much light is too much?

    How much light is too much?
    An experiment in excessively high light levels We ran an experiment with our PhytoMAX-2 800 in a 3x3 foot tent to show what happens when plants get too much light. While some of the strains we regularly work with can handle this level of light, most plants like this 'Rainmaker' start suffering and don't maximize their yield when light levels...
  2. Common PAR Meters Understate the Intensity of PhytoMAX LED Grow Lights- Some by 26% or More

    Common PAR Meters Understate the Intensity of PhytoMAX LED Grow Lights- Some by 26% or More
    PAR lighting meters can be incredibly useful tools when growing plants, but as with any tool it is important to understand their limitations. All PAR meters are made with a sensor that counts individual photons ("particles" of light). These sensors aren't perfect though, and record some wavelengths (colors) of light better than others. Spectroradiometer-based PAR meters correct for this inaccuracy...
  3. Determining the Ideal LED Grow Light Setup

    Determining the Ideal LED Grow Light Setup
    Determining the ideal LED grow light setup for your grow depends on a lot of variables: Plant / crop: Light demands Photoperiod (day / night hours) Growing area: Size Shape Your goals: Vegetative, flowering or both? Economize vs. maximizing yield Active growth vs. maintenance By selecting the appropriate footprint coverage using our lights, you can achieve the ideal grow! Plant...
  4. What is the Correlated Color Temperature (CCT) of Black Dog LED Grow Lights?

    What is the Correlated Color Temperature (CCT) of Black Dog LED Grow Lights?
    Black Dog lights don't have a color temperature, and to understand why you need to know what "color temperature" means. The correlated color temperature of a light source is a measurement of the average hue or color of light as it appears to the human eye, in terms of what temperature (in degrees Kelvin) you would need to heat something...
  5. Which is better: UVA or UVB?

    Which is better: UVA or UVB?
    UV light for plants are split into 3 categories based on wavelength: Ultraviolet A (UVA) is from 320-400nm and comprises about 3% of the photons in natural sunlight that make it through Earth's atmosphere. UVA lights for plants do not damage DNA. Ultraviolet B (UVB) is from 290-320nm and makes up less than 0.15% -- less than 1/5th of 1...
  6. Black Dog LED Research Demonstrates Plant-Optimized Grow Lights Require Warmer Grow Rooms

    Black Dog LED Research Demonstrates Plant-Optimized Grow Lights Require Warmer Grow Rooms
    Most Plant Grow Lights are Human Lights in Disguise Every artificial grow light technology on the market was originally designed to provide light for people. Some lighting technologies such as fluorescent / induction, HPS, MH, CMH / LEC, plasma and white LEDs happen to include enough of the right colors of light to be able to grow plants; others such...
  7. About 1, 3, 5 and 10-watt diodes and COB or "Integrated" LEDs

    About 1, 3, 5 and 10-watt diodes and COB or "Integrated" LEDs
    LED diodes are rated by the amount of power (wattage) they can handle if they are perfectly cooled. Since LEDs can't be cooled perfectly in real-world environments, they are run at lower actual wattages than they are rated for to extend their useful life and maintain spectral quality. As less power is run through an LED, it becomes more efficient...
  8. How to Compare Different Grow Lights

    How to Compare Different Grow Lights
    It would be remarkably convenient if a single number could be used to compare different types of grow lights. Many companies try to express their lights' performance as a single, impressive PAR, lumen, YPF or other intensity measurement, but this certainly does not tell the entire story. Any of these measurements can be manipulated to make a grow light look...
  9. LED is Earth Friendly

    LED is Earth Friendly
    Our energy saving and eco friendly grow lights are the smarter choice. They use 90% of their electrical energy to produce useable light energy. Compare this to HIDs, which only use 25% of their energy for light, with the other 75% going to heat. Our powerful LED grow lights reduce the need for cooling equipment and create huge savings in...
  10. LED Grow Lights Decrease Internodal Spacing

    LED Grow Lights Decrease Internodal Spacing
    Lycopersicon lycopersicum Side-by-Side Growth Analysis: Hortilux HID vs Black Dog LED Abstract Nine Super Sweet 100 tomato plants (Lycopersicon lycopersicum) were started from seed and grown for 37 days with controlled nutrient and H2O input, ambient CO2 temperature, and humidity under three different light sources (Hortilux 400-watt HID bulb, 420-watt Black Dog LED flowering model , and 270-watt Black Dog LED...

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