The holes to mount it to the stud is only on one side. If you’re doing a retro fit to replace an existing unit, and the stud is on the other side, you better be creative. You also can’t install the electrical without going in the attic. If you don’t have an attic, you’re screwed. I can’t test the brightness or efficiency because I can’t get it installed. Can’t hear to see how noisy it is either but I was making a lot of noise in my attempt to get it installed.

This is very quiet, but I can't use the light because the grill trim screws were not included. The instructions do not give the screw or thread size.

Fan is quiet. Light is bright. The problem is the plastic tabs holding the light on are weak and break over only a few weeks. The cover has fallen down twice because of broken tab assemblies.

We just installed the new exhaust fan and it’s great. It’s very quiet and looks great. We're very satisfied with our purchase.

Many things wrong with this design. 1st u can only have 1/2 inch sheetrock above it. Anything more you can't put the exhaust on cause it's below the sheetrock if 3/4 sheet is used. 2nd. The screw holes on electrical box is on the bottom and can't see or get to it and incorrect size for the screw hole. 3rd you have to bend the ears in order to fit to the size without the attic exposed. And the slowly break off with just one bend. No other way around it. This fan is a horrible design from the engineering aspect. DO NOT BUY.