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    2x 1000watt HPS vs. What wattage LED?

    hello there. i am currently running 2 1000 watt HPS lights in a 7ftx7ft room. as summer is approaching i have been thinking about switching to mars hydro LED lighting. first off, has anyone done side by side comparison HPS vs. LED? secondly, what/how many LEDs would i need to get the performance...