# Lumen output for a new room

I am building a game room and want very good lighting in at least the portion that will include the table tennis table. I would like 500 lux (46.5 foot candles) of light in this part of the room (at a 10' ceiling which is what I have). That part of the room is approximately 1/3 of the total 500 +/- sqr ft. So, if I understand this correctly, I need 46.5 * 500/3 = 7,750 lumens in that part of the room.

I am thinking of going with LED recessed cans or puck lights and if I went with 3 in a row (22' width room), I would need 2,580 lumens per light and if I went with 4 in a row, 1,900 lumens per light (approx). I have recessed cans in other parts of my house today at only 700 lumens each. Is it the case that a "standard" can or puck housing can be installed, then just utilize a much higher lumen bulb? Or is that not how it works? Any advice would be appreciated.

• Are you basing your calculations on light bulbs which emit light in a sphere? Or are you using light which will be aimed e.g. By lenses? I ask because you mentioned LED, and those do not emit in a sphere naturally. Commented Feb 4, 2019 at 19:20
• Good question, I am going by the fact that the required lighting for table tennis tourney events is 500 lux at 10' (with no other specifics given)...so I simply ran with that to try to calculate the right kind of light/fixture. I would certainly prefer LED, but I am no expert, so could be convinced otherwise.
– John
Commented Feb 4, 2019 at 19:24
• I just installed a bunch of 5000 lumen "lamps" they are a bit larger than a 100w lamp but produce light in a sphere, some corn lights have a set of led's on the bottom and although these don't look like light bulbs they do produce light in a sphere. Commented Feb 4, 2019 at 22:14
• I've been shopping for recessed light LED modules, and the brightest that are commonly available top out around 1400 lumens. I have seen some 1500 and 1600 advertised, but I think those claims are lightly exaggerated based on my testing. Commented Mar 6, 2019 at 19:52