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How to Choose UVC LEDs?

Feb. 19, 2021

According to LEDinside's "2018 UV LED Application Market Report - Curing, Medical, Sterilization", the UV LED market value grew to $223 million in 2017 and is estimated to reach $1.224 billion in 2022, with a compound growth rate from 2017 to 2022 of 33%. In addition to the steady growth of the curing market, surface sterilization, static water sterilization, and flowing water sterilization are the main growth drivers for the next five years (2018-2022).

The next UVC LED Disinfection Module supplier will introduce the application scenarios of UVC LEDs and how to choose UVC LEDs.

UVC LED Disinfection Module

UVC LED application scenarios

According to LEDinside's "2018 UVC LED Application Market Report - Curing, Medical, Sterilization", surface sterilization, static water sterilization, and flowing water sterilization will be the main growth drivers outside of the curing market in the next five years (2018-2022). According to different application scenarios, we may see UVC LEDs in these applications in the future.

Surface sterilization: medical appliances, mother and baby products, intelligent toilets, refrigerators, tableware cabinets, fresh boxes, smart garbage cans, thermal cups, escalator handrails and vending machine buttons, and other high-frequency public contact surfaces.

Static water sterilization: water dispenser tanks, humidifiers, ice machines.

Flowing water sterilization: flowing water sterilization modules, direct drinking water dispensers.

Air sterilization: air purifiers, air conditioners.

How to choose UVC LED?

You can choose from parameters such as light power, peak wavelength, life span, and light output angle.

Light power: the current market available UVC LED light power grade from 2 mW, 10 mW to 100 mW. Different applications have different power requirements. In general, you can combine the irradiation distance, dynamic demand or static demand to match the light power. The larger the irradiation distance and the more dynamic the demand, the higher the required optical power.

Peak wavelength: As mentioned above, 265nm is the best wavelength for sterilization, but considering that the average value of peak wavelength varies little among manufacturers, the light power is actually the most important indicator of sterilization efficiency.

Life: Based on the specific application of the use of time to consider the demand for life, to find the most compatible UVC LED, suitable for the best.

Angle of light: the use of flat lens package lamp beads out of the light angle is usually between 120-140 °, the use of round ball lens package out of the light angle between 60-140 ° adjustable. In fact, no matter how much light angle UVC LEDs are selected, they can be designed with enough LEDs to completely cover the required germicidal space. In scenarios where the germicidal range is not sensitive, a small exit angle allows for more focused light and thus shorter germicidal times.


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