first time poster *here* looking for measurement

[kieth]

3 1/4" X 6 1/2" inner hole

4" x 7 3/16" outer it will work with the tubing you are using


You might look at a big truck store, they have some lights (truck lights) that have a rubber grommett and a sealed unit that are along the same dimensions, they are also available as a back up light white


Kieth

http://www.class8truckparts.com/Truc...B001NVRUO4.htm

http://www.class8truckparts.com/Truc...B003AOHHKY.htm


I could never find the exact dimensions but I believe they would work in the 2 x 4 rectangular tubing that you are using and they are water proof and sealed. Kieth

[Captainfab]

Yes, the oval 'Trucklites' will fit in a 2" x 4" rect tube. I agree, the sealed 'Trucklites' are darn good lights. You very seldom have problems with them when installed correctly. They are available in LED versions also.

Originally Posted by kieth

3 1/4" X 6 1/2" inner hole

4" x 7 3/16" outer it will work with the tubing you are using


You might look at a big truck store, they have some lights (truck lights) that have a rubber grommett and a sealed unit that are along the same dimensions, they are also available as a back up light white


Kieth

http://www.class8truckparts.com/Truc...B001NVRUO4.htm

http://www.class8truckparts.com/Truc...B003AOHHKY.htm


I could never find the exact dimensions but I believe they would work in the 2 x 4 rectangular tubing that you are using and they are water proof and sealed. Kieth