Review on Horticulture Lighting Group High Efficiency Upgraded by Kara Davis

Excellent LED for space and price. I have a 3000K spectrum so I'm going to use it for veggies and flowers. I am currently growing zinnias, corn and sunflowers underneath in a 2x2 foot grow tent. I have really good growth. As with any lighting, some heat will be generated, so you'll need at least a small 4" fan to pull the heat out of your tent. Unless you're growing in a tent, you may not need a fan. I will definitely use this product again and recommend it to others. I am happy with it and everyone I know who buys HLG bulbs is a happy customer. I am planning to buy one of their large lanterns for my 4x4 foot tent.