Befri
Well-Known Member
What's the calculations to figure out the efficiency? Is this it?It was just the light. They are the same.
Very nice job on the light, wondering what eficiency it is. Maybe 2.6-2.7 with all them strips.
LUX / 1000 * 15 = PPFD
LUX / 69 = umol/m2/s
What other formulas are there to keep handy?
I have a $35 lux meter from Amazon that I bought during this DIY saga! I've seen on RUI people using it to judge the position of the light. For example, if I was to measure the LUX with the meter when the plants are reaching/stretching for the light. I could take that measurement(45k lux), and lower the light and also dim the light to match the 45k. You would save money on energy, and less light loss on the walls/etc.