Adjust A Wings 315 W e Ballast GroFan_8 Robust and environmentally friendly bamboo SG S0730 Robust and environmentally friendly bamboo frame It includes our complete range of powerful base nutrients and stimulants to get you growing prize winning fruits or flowers It fires both the 3K and 4K 315W lamps remotely & effortlessly due to the use of high frequency Hertz output (instead of low frequency square waves that all other manufacturers use) Adjust A Wings specialist Ultra High Frequency (150KHz) 315W e ballast was designed specifically for remote use (out of room mounting) and long lamp holder cords (up to 5m long)