DIY Home Improvement Forum banner

1 - 11 of 11 Posts

·
Super Moderator
Joined
·
13,887 Posts
What size fixture, bulb and trim? What is the room? Different rooms require different amounts of light.
 

·
Super Moderator
Joined
·
9,083 Posts
I think I remember reading a 6" can in an 8' ceiling will give an 8' spread on the floor.

Or I could have made this up!
 

·
Super Moderator
Joined
·
13,887 Posts
That is a rough guide.
 

·
JOATMON
Joined
·
15,309 Posts
Also depends on what kind of bulb and wattage you put in....

This is a pic of one part of my garage....I have 16 6" cans in it....500 sq ft...each can has a 23w CFL.



When in doubt...put in more than you think you need....use LED bulbs and connect a dimmer.
 

·
Registered
Joined
·
265 Posts
Discussion Starter #7
I found a formal. Room square footage x 1.5 divided by bulb wattage equals number of bulbs.
 

·
Licensed Electrical Cont.
Joined
·
7,829 Posts
I don't use sq footage. I use the dimensions of the room and lay out the lights according to the footprint.
Telling you how many lights is one thing, how to lay them out is another. What if the guide say you need 11 lights, how would you lay them out?
 

·
Super Moderator
Joined
·
13,887 Posts
I found a formal. Room square footage x 1.5 divided by bulb wattage equals number of bulbs.
This so called formula does nothing to account for the difference in lighting levels needed in a kitchen or a family room, work surface height, beam spread from the bulb, surface reflectivity or trim selections. I would consider it almost worthless.
 
  • Like
Reactions: Speedy Petey
1 - 11 of 11 Posts
Top