Review on ✨ Hykolity 10 inch Flush Mount LED Ceiling Light Fixture, 17W [120W Equivalent] 1100lm, Adjustable Ceiling Lights, Brushed Nickel Saturn Dimmable Lighting for Hallway Bathroom - 2 Pack, 3000K/4000K/5000K Options by Matt Louis

The device does not correspond to the illustration on the lamp supplement. See photo❌. The only mounting holes are 3 1/2 inches and will not fit in older homes with plastic boxes. They give you a steel plate for mounting (nothing in the instructions) BUT the holes in the steel plate for light mounting screws are just above the rim of the round plastic box. 😡 Do not screw in the mounting screws to mount the flashlight. I'm a retired electrician and it took me 2.5 hours to install. three attachments and disconnections... ended up having to snap off two sides of the plastic box so the light mounting screws could be tightened. All I can say is that it's light.