How big is the size of the lamp downlight?
Generally, the maximum size of household downlights is no more than 2.5 inches, and a 5W energy-saving lamp is enough. LED lamps have only appeared in recent years and can be used as a substitute for ordinary lamps. The advantage of lighting is that if one or two lights are broken and cannot be replaced, the spotlight does not need to be installed where there are words or patterns, and its light source is warm light.