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Mod #96: Exterior Motion Sensing Light

Posted By ModMyRV On May 19, 2010 @ 7:55 pm In exterior, lighting | 30 Comments

This modification was designed and completed by ModMyRV member jfdrewett. This article carries a copyright. Permission must be obtained from the author before duplication or reposting.

It can get pretty dark at night for RV enthusiasts in the middle of nowhere, or even parked in your own driveway. Carrying a flashlights can be a pain and lanterns can tip over and break. The answer? Enjoying a starry night, or just walking around outside an RV, can be just as comfortable and safe as any back porch, when your RV has its own powerful, built-in motion sensing security light.

Mod Difficulty:

We spend a lot of time in our RV both in parks and out in the desert. I found this motion sensing light and decided to give it a try on our trailer. The installation was very straight forward. First, I removed the existing light and cut the wires supplying power. It’s a good idea to mark the positive and negative wires before cutting if you’re not experienced with 12v wiring. You might also want to remove the fuse supplying power to the light circuit and make sure the light switch is off.

The motion light is protected against reverse polarity so you won’t destroy it if you happen to hook it up backwards during installation. The next step is to clean all the old sealant from the RV before installing the new light. Now connect the wires you cut to the new light. At this point, it’s a good idea to make sure everything is working before mounting it to the trailer. Turn on the power and the light should come on. If not, check the polarity on the wires. Once the light is functioning, mount it to the side of the trailer using sealing tape and/or silicone sealant. On our trailer, the screws lined up so no drilling was necessary.

It’s that easy and you’re done.

To put the light in motion mode, simply turn the light on, turn it off, and then back on again. The LED will begin flashing and the light will only come on at night when there is motion. The great part is that you don’t have to worry about the light draining your batteries. You can just leave it on. It won’t come on during the day and shuts itself off after a minute or so when motion activates it at night. If the battery drops to 11.5 volts the light turns itself off to prevent battery damage.

There is a sensitivity adjustment if you find the light is coming on too often. There’s also a bulb upgrade available to a 300 watt lumen LED.

This is a cool and easy mod. Enjoy!

ModMyRV recommends these parts for this mod:

12 Volt Motion Sensing Porch Light


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