Lux meter readings 600hps

Craig1969SS

Well-Known Member
Take from this what you will. I got a new Dr. Meter because I was curious about a vertical bulb and its output of light and where it was best. There is definitely less light output from near the top than the bottom and the meat is in the middle and toward the bottom. This bulb has 1 grow. An older bulb I measured had 40k lux decline through out. I'm going to use a cool tube and measure the difference the glass supposedly blocks, then a hood.
 

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