- Indoors or outside, use only lights that have been tested for safety. Identify these by the label from an independent testing laboratory.
- Check each set of lights, new or old, for broken or cracked sockets, frayed or bare wires, or loose connections. Discard damaged sets or repair them before using.
- Fasten outdoor lights securely to trees, house, walls or other firm support to protect from wind damage.
- Use no more than three standard-size sets of lights per single extension cord.
- Turn off all lights on trees and other decorations when you go to bed or leave the house.
- Lights could short and start a fire.
- Never use electric lights on a metallic tree.
- The tree can become charged with electricity from faulty lights, and any person touching a branch could be electrocuted! To avoid this danger, use colored spotlights above or beside a tree, never fastened onto it!
- Keep “bubbling” lights away from children. These lights with their bright colors and bubbling movement can tempt curious children to break candle-shaped glass, which can cut, and attempt to drink liquid, which contains a hazardous chemical.