PHOTONTEK X 600W PRO 3.1 LEDThe new higher specification PHOTONTEK X 600W PRO 3. 1 LED is a linear multi light aluminium bar fixture producing high PPF levels of 1990 mol s achieving a photon efficacy of 3. 1 mol J. 19% more light quantity for higher coverage. Grow more with less for higher yields. With the advances in technology and fixture performance, high quality LED horticultural lighting is continuing to offer significant return on investment to growers as more quality