Number of LED light in a typical room.

Old 11-17-14, 07:14 AM
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Number of LED light in a typical room.

I've been researching LED lights for use in a family room addition. The room is 15x18 and I would like it to be well lit when the overhead lights are on without the use of bulky fluorescent fixtures. I figured, from the appearance of the LED lights I've seen that 6-100W recessed fixtures should do it. I searched for practical advice and found nothing but formulas for the lumens and color, that don't answer my questions in basic terms like, bright enough, way bright, or "Dude. Get a dimmer switch on that setup!" We use a lot of LED bulbs and I'm happy with the light they put off.

I understand the lumens and color numbers but there is no day-to-day regular guy descriptions of how those numbers translate to day-to-day conversation.

Any day-to-day advice? 6-100W? Less? More?
Old 11-17-14, 08:33 AM
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Right now 100w equivalent LED bulbs are somewhat rare. I would plan around bulbs that are 60w equivalent which are more available. Are you using recessed cans?
Old 11-17-14, 08:49 AM
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Also I would go for the warm light (2700K). It will seem less bright but less austere that the cool light gives. That may affect your choice of wattage fixture you use. PDane is correct that 100W LED's are rare but they will become more common as time goes on. Have you considered halogen bulbs in a higher lumens as opposed to LEDs?
Old 11-17-14, 09:00 AM
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I did find some reputable 100W fixtures to fit into the recessed cans. If I try to find "warm light" versions, that may be tricky. 6-60W could work for me? There will be other lights in the room as well since it is a computer and book shelf type of room. The concern is to get lots of light with the flick of a single switch in case we have some artsy activity going on.

I like halogen lights, but the draw for me to LED is the low power use and the long life.
Old 11-29-14, 02:07 PM
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it depend on the surface that you want to cover with light so i suggest you to put some led lights and see how it goes for you
Old 11-30-14, 10:30 AM
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You can probably space recessed with a 65w equivalent LED on 6' centers throughout the room. A lot will depend on beam spread, mounting height and work surface height.
Old 12-10-14, 10:13 AM
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It's very difficult to compare incandescent lights and fluorescent lights with LED lights unless you have actual lumens ratings or truthful watts equivalent (e.g. 60 watt incandescent equivalent) ratgins.

Many LED lights don't specify anyt lumens ratings. For these it is impossible to predict the relative amount of light compared with the old lights you are going to replace with LED.

Still, unless the room has light colored walls, etc. and light colored furnishings, LED lights not shaped like traditional light bulbs will usually give more uneven lighting compared with incandescent or fluorescent lights.

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