When the sun goes down, Happy Leaf LEDs take over

The butter lettuce growing in Polly McGann and Victor Zaderej’s basement is so silky-smooth and flavorful, you’d have a hard time believing it’s not, well, butter. The leaves boast mouthwatering oils possible only in a growing space devoid of pests or the risk of the plant bolting – going to seed too quickly. Under state-of-the-art Happy Leaf LEDs that effectively mimic the sun, these plants grow faster than they would outdoors. Lettuce is ready to harvest within 3 weeks.