As UV (ultraviolet) LED applications are growing fast, production value as a percentage of total production value for all UV light sources will rise to 40% in 2018, according to Digitimes Research.
Of total production value for all UV light sources in 2015, mercury vapor lamps will account for 48.1%, UV LED 23.3% and metal halide lamps 8.9%, Digitimes Research indicated.
Cost per watt stands at US$0.4/W, US$0.7/W and US$3.1/W for low-voltage, high-voltage and ultra-high-voltage, respectively, mercury vapor lamps. In comparison, UV-A LEDs (365nm) have a cost per watt of US$6.5-31.5/W and UV-C LEDs (200-275nm) US$100-200/W.
Due to lower cost per watt, UV-A LEDs (320-410nm) account for 99% of UV LED market value. UV-C LEDs have been widely used in sterilization and usage will quickly hike if prices drop significantly.
