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i think it may not matter.
if you have concerns, you can start by putting the bump towards the reflector. then you'll have the 'perfect' surface on the outside.
or towards the reflector or maybe it doesn't matter?
The dimple I'm talking about is the "bump" (on the bottom of the lamp) as seen in this photo.
thank you for the help
Tank: 48in(H)x18in(W)x28in(H) | filtration: 2x2000LPH canister | substrate: Up-Aqua Aqua Soil | fertilizer: EI+pressurized CO2 | light: 2x54W T5HO+2x150W halide+2x moonlight
i think it may not matter.
if you have concerns, you can start by putting the bump towards the reflector. then you'll have the 'perfect' surface on the outside.
thomas liew
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