How to install exterior lights on siding?




I live in a 30 year old house with 30 year old vinyl siding. The siding isn't flat, so I was wondering how to install exterior lights by my entry doors so that the base of the light sits flush on the siding.
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You need to use a siding plate.
https://www.familyhandyman.com/electrical/outdoor-lighting/vinyl-siding-lights-how-to-mount-lights-using-a-vinyl-mounting-block/view-all/
https://www.thisoldhouse.com/more/how-to-install-exterior-sconce
https://www.homedepot.com/b/Building-Materials-Siding-Mounting-Blocks/N-5yc1vZbye2
Check the style as well as the depth of the siding.
How are you getting the wiring there to begin with? Have you checked the load on that circuit? Since it’s going outside there must be a GFCI outlet on that circuit.
Why not get an electrician to help you?
There is already wiring, light etc. there but it doesn't fit flush … I am wanting to replace it with one in the correct manner so it sits flush on the lapped siding.
You might want to consider these, if solar will work. We put them up a year ago and they are still working great. It's surprising how bright they are and easy to install. We even put one at the mailbox because it's so dark when we get home most days.