Lighting for Entryway

NaplesGuyApril 12, 2012

I am trying to figure out how large of a light fixture and how much wattage we need for our entry way. It is a 2 story entry way that is about 17.5 feet wide by 15 feet deep with 23 foot ceilings. Half of the width is the foyer and the other half is a staircase. The fixture will be hung to be centered between them. See the attached plan (it's the chandelier I'm concerned about). There's 4 recessed lights in the ceiling in that area, so I'm trying to figure out what I need for the chandelier. The one our decorator proposed has 4 60 watt bulbs. It doesn't sound like a lot to me given the size of the space, but maybe it is, given the recessed cans in the ceiling.

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David

It could suffice assuming a ~ 20 lumens per sq ft. 17.5 * 15 *20 = 5250.

A 60 W incandescent bulb produces ~ 800+ lumens. So 4 bulbs would provide ~ 3200 lumens.

A recessed can will produce ~ 500 - 550 lumens light. A Cree Cr6/ CR4 will produce ~ 575 lumens (max nominal rating). If you have a dimmer cut the max by 5%.

Assuming a reduced output of 546 per can, you get 2400 (chandelier) + 4 * 546 = 5384 lumens.

    Bookmark   April 14, 2012 at 12:00AM
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