1. LED light source has high luminous efficiency
Luminous efficiency comparison: Incandescent lamps produce 10-15lm, halogen lamps produce 12-24 lumens/w, fluorescent lamps produce 50-90 lumens/w, and sodium lamps produce 90-140 lumens/w, with most of the power dissipation becoming heat loss. The light effect of LED: it can emit 50-200 lumens/watt of light, and has good luminous monochromator, narrow spectrum, no filtering, can directly emit color visible light.