The "Green Star Grow Bar" is advertise to only use 12 watts but promises the same lighting as a 250 watt metal-halide, OR HPS. saving 90% of the energy bill. LEDs emit ectreamly low heat you can hang them really close to your plants for high intensity output. Also sayd they were tailored to the spectrum of light that need the most. Im going this route my next grow for all vegging just for the low heat and energy benifits.
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