HIGH PERFORMANCETotal Output: 1090 umol/sSystem Efficacy: 2.6 umol/J ENERGY-SAVING AND EASY HVACUp to 40% energy saving40% less HVAC requirement TOTAL CONTROLThe ROI-E420 is controllable with Growers Choice Master Controllers and is compatible with all quality master controllers. Cultivators can set the fixture to turn off and on at desired times, program sunrise/sunset settings, program dimming options and set protective fail safes to dim or turn off fixtures in the event of excessive room temperatures, such as in the event of HVAC failure, p