- Joined
- Mar 21, 2019
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- 305
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I just bought an sq-420 and the par readings are higher then i expected for my aquatic life fixture. my bulb are relatively new, they have run for maybe 40-50 hours. To what degree does par output decrease in the first 100 hours?
I am seeing around 190-200 par at 12” deep with the lights at 8” over the water in some spots. its a 40B with the lights in a 16” bracket so i dont have an apples to apples par comparison, but it seems high. Higher even than a 4 bulb ati fixture.
I am seeing around 190-200 par at 12” deep with the lights at 8” over the water in some spots. its a 40B with the lights in a 16” bracket so i dont have an apples to apples par comparison, but it seems high. Higher even than a 4 bulb ati fixture.