The NextLight Mega LED Grow Light contains American made, full spectrum bright white LEDs. The spectrum is designed to closer match the sun than even your traditional HPS. Each unit can maintain a 100,000 hour life rating at 77° F ambient conditions. Using the best LEDs money can buy, NextLight can ensure longer life and better performance. NextLight’s unique makeup also means that it emits a full 75% less heat than a 1000 watt HPS.