Forget about Lumens, just look at the wattage of the bulb. With those screw in LEDs (SIL) you should only need about 35-watts per square foot. My filing cabinet was only 86-watts.
Forget CFL, they are old technology. The SIL are not only more efficient, but also have a better light distribution. They also run cooler. I’m not really a fan of those purple lights. If it were me, I would run three 14-watt LEDs in any spectrum and ditch the purple light in the side.
You’re definitely going to need a speed controller for that fan, a 4" fan on full blast sounds like a jet engine.
Well the fan and filter arrived. The filter is a behemoth and throws new challenges into the plan. Im contemplating sticking the fan and filter straight out of the top of the fridge like a chimney, or a piece of ducting out tge top and mount the combo against the side of the fridge. Orrrr break all the rules, mount the filter in the bottom “emergency extra growth room area”, and have the fan mounted outside the fridge.
Atleast it seems fairly quiet with just the fan alone, the controller allows me to dial it down further than expected, so not a total shit show
I’ve only used it on it’s own, on the counter and it wasnt horrible on the low end, it does hum a bit when turned down. I was considering putting a foam lined tote on top with holes in the back if it’s too loud.
On a side note I still have to put an intake on it. Somewhere
I think I have the last of the pieces I need, I’m going with option 1 for fan location. I got lucky and found a 4" piece of dryer duct with an adapter on it tucked behind my furnace. And I grabbed some black 2 inch elbows for my intakes, going to go with 3 two inch intakes