what are the safest type of christmas lights to use

When it comes to choosing the safest type of Christmas lights, there are several factors to consider. First and foremost, you should always choose lights that are certified by a reputable testing laboratory like UL (Underwriters Laboratories). This ensures that the lights meet safety standards for electrical and fire hazards. Additionally, it's important to choose lights that are specifically labeled as "indoor" or "outdoor" depending on where you plan to use them. Outdoor lights should be designed to withstand weather conditions, while indoor lights should have insulation that prevents heat buildup.