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And the physics say that there is a ton of room for more actual light(umols) to be made with the same amount of power(watts). In hps only about 20% is light and the rest is heat. Well with the best LED's it's about 40%+ light and then the rest heat. It all comes down to micromoles(umols). And...

LED's are the future. They are the most efficient and if you are willing to pay for quality, are just as powerful and capable to out yield HID. Everyone looks at lumens when looking at lighting. Lumens are for humans. Par output measured in micro moles, is the truest measure of how powerful an...