Before investing in motion sensor lights, there are a couple of disadvantages worth noting. For starters, they’re not as reliable as other forms of lighting. Motion sensor lights can be accidentally triggered by pets or wind, which can become a nuisance after a while. The opposite situation can occur, too, where they don’t turn on when you need them to. 

If you need to visually inspect your Christmas lights to determine which are good and which need replacement, there are a few things to look for. First, look for discoloration, such as a dark spot or two on the inside of the glass. The spot is an indication of a burnt filament. Also, look for missing filaments, cracked bulb glass, and broken sockets.

You can use outdoor electrical outlets to conveniently power landscaping equipment such as electrical lawnmowers, leaf blowers, and pressure washers. From a recreational standpoint, outdoor outlets are handy for powering electric grills, mini-fridges, and stereos. They're also helpful when it's time to string Christmas lights on your home and around your property.

Yes, outdoor lights and receptacles should be on a ground-fault circuit interrupter (GFCI) for safety. The outdoors is considered a wet location where GFCI protection is generally required. A GFCI enhances safety by automatically tripping and shutting off the circuit if it detects an imbalance, which protects against electrocution and reduces the risk of an electrical fire. While it is the safest approach for all outdoor electrical components, specific requirements can vary depending on the type of light (e.g., pool lights), its location, and local electrical codes. For guidance tailored to your specific situation, it's best to consult a professional electrician.