Reasonable ft-candles for kitchen general lighting (at floor leve
The question: What is a reasonable foot-candle or lumen/sqft number for kitchen general lighting?
The background: Replacing a 6 unit 4' 40W T12 construct on the 9 ft high kitchen ceiling. That structure, combined with the single 150W R40 over the sink, yielded a crazy bright kitchen. Abusing some of the Halo calcs, just for the T12's in the 9x13 space, yields about 80 fc at floor level (roughly a 50% lumen deterioration from source to floor). I'd like to go with six 150W R40's with a dimmer (including the over sink lamp) which will apparently drop the fc to about 50. Alas, simple install would use IC units apparently limited to 65-75W and yield about 20 fc at floor level. A bit more effort to get the non-ic 50 fc. I think the R30 bulbs in 6" cans look wrong so the 5" cans would be used, limited to 65W for IC use, further lowering the fc to about 18. And looking ahead to potential LED units, about 11 fc. Based on some of the other area lighting in the house, I'm guessing about 10 fc at floor level is about the "floor"???
Sorry for the number focus, an engineer by training (ChE) and over designing typical (dimmer a nice thing). Thanks in advance for the advice!