I am designing and having installed, a lighting system above a pool table in the dining area. I am proposing a 40* light x 3 over the 8'x4' table. The table is 8' below the ceiling and is 2.5' high. So the ceilings are about 10-11' high. By calculations, the 40* light will put a 6.6' spot 2' from the ends of the table and a 6.6' spot in the center of the table.
The requirement is to have 520 lux minimum at the corners and the rails of the table. There is no possibility to have a hanging light as would be normal so the overhead spotlights are required. LED lights are to be installed.
There are several factors:
1. Either PAR 38 or BR40 lights provide 40* angles and higher outputs.
2. The PAR 38 lights have sharp edges whereas the BR lights are more disperse. However, it is desired to have the lighting over the table separate from the room lighting, more for effect. IOW we don't want to light up the neighborhood just to play pool. So there is a shadow consideration for the PAR38 lights.
3. PAR and BR lights are available in 2500 lumens or less and are dimmable. So, a higher output light could be used and then dimmed without having to be concerned about enough light.
So, the question is what light output to choose and which light?
The requirement is to have 520 lux minimum at the corners and the rails of the table. There is no possibility to have a hanging light as would be normal so the overhead spotlights are required. LED lights are to be installed.
There are several factors:
1. Either PAR 38 or BR40 lights provide 40* angles and higher outputs.
2. The PAR 38 lights have sharp edges whereas the BR lights are more disperse. However, it is desired to have the lighting over the table separate from the room lighting, more for effect. IOW we don't want to light up the neighborhood just to play pool. So there is a shadow consideration for the PAR38 lights.
3. PAR and BR lights are available in 2500 lumens or less and are dimmable. So, a higher output light could be used and then dimmed without having to be concerned about enough light.
So, the question is what light output to choose and which light?