Each lamp uses 2 of our custom designed High-efficiency white light Quantum Boards. With a total of 576 Top Bin Samsung LM561C S6 L. High-efficiency white light Quantum Boards. White Light Full Spectrum for better results.Better canopy light penetration with diffused light. Ideal for veg and bloom. 2.5'x2.5' or 3'x3. 18" x 20" x 3. The item "HLG 300 3000K (3K) Spectrum Horticulture Lighting Group LED Grow Light" is in sale since Tuesday, July 10, 2018. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Gardening Supplies\Hydroponics & Seed Starting\Grow Light Kits". The seller is "wholesalehydroponicssupplies" and is located in Tucson, Arizona. This item can be shipped to United States, Canada, United Kingdom, Germany, France.