LED’s (Light Emitting Diodes) are widely considered to be the future of plant grow lighting. This is because LED manufacturers are achieving better and better control over the spectrum of light that comes out of LED fixtures through fine-tuning the array of LED’s on the panel. LED fixtures are also more energy efficient than HID fixtures, for example, because more of the wattage, or energy, that goes into the fixture is translated into useable PAR light energy. Another nice benefit of LED fixtures is that the bulbs do not need to ever be replaced. In fact, our Black Dog fixtures have a (limited) lifetime warranty.