Pay attention to the connection distance of the holiday decoration lights: Generally speaking, the connection distance of the holiday decoration lights of the festival decoration light series is 20 meters, and the connection distance of the 5050 series of holiday decoration lights is 15 meters. If the connection distance is exceeded, it is easy to heat up, and the service life will be affected during use. The glass tube can be colorless or tinted, and the inner wall can also be coated with phosphor.