Reddit mentions of Prime Wire & Cable EC883627 16/3 SJTW Landscape Extension Cord, 35 Feet (White)

What he is saying is the following (ELI5 version):

• Every cable loses some power. The longer the cable is, more power lost.
  
• Wyze cameras (or any USB device) uses a 5 volts power supply. this is very low.
  
• wall outlets (mains power) uses 110 Volts or 220 Volts, depending on your country.
  
• If you run a very loooooong USB cable, most of the 5V will be lost on this looong cable, probably not being enough to power your wyzecam. (I know that this is wrong, but is easier to think like this and to this use it is a good enough analogy)
  
• If you run a loooong extension cord directly attached to your wall, you will have a much much lower loss, so, you should probably do that.
  
• by doing that you will be effectively bringing a outlet to near your camera, so be safe and do not put it where you wouldn't put a power outlet (like near the floor, on a open to the environment, by the side of the pool).

There is no easy way. Your best idea, is either routing power and putting an outlet closer. The other which isn't perfect, is running a extension cable up from your area along the wall near the ceiling and directly to the light house.

Looks like you'll need something like 26.5ft (you get about 5 with the light houses so keep in mind) of extension.

35ft extension cord on amazon for 11.88