Use LED lights that are battery powered. This type of fairy light can save energy, and many are just as bright as their mains-powered counterparts. They’re also safer, and their bulbs are less likely to get hot. The only downside is you can’t use them outside.Click to see full answer. Also to know is, can battery operated LED lights catch fire?LED fairy lights (esp. battery-powered ones) are not a fire hazard at all, not even if Fluffy or FiFi chews the cord. Pets are not at risk of electric shock because the voltage is so low and the risk of accidental fire is nonexistant because the current running through the wires is so low.Also, is it safe to leave LED lights on all night? Fortunately, because they are cool to the touch and simply dim over time, LED lights do not present these hazards. With this in mind, it’s a good idea to turn off your LED lights at night so the transformer has time to cool down and avoid the risk of overheating. In respect to this, are battery operated lights safe? The battery powered LED string lights are much safer to use in your home than the electrical version. Many people wonder about their overall safety. The key point with these led string lights is that they do not generate heat like incandescent bulbs do. They give off super bright light but virtually no heat.Are LED string lights a fire hazard?They can overheat and cause a fire. Make sure that cords are not pinched in doors, windows, or under heavy furniture, which could damage the cord’s insulation. Do not mount or support light strings in a way that might damage the cord’s insulation.