As Korean LG Innotek has released on its website, a new UV (ultraviolet) LED with a wavelength of 275 nm has been developed and is ready for mass-production now. As LG Innotek stated, the new UV LED has the highest power on the global market and will “trigger an explosion of UV LEDs for purification and sterilization.”

 

LG Innotek’s new UV-LED belongs to the UV-C range and works in the range of wavelengths from 200 to 280 nm. As LG Innotek said, the new UV LED will find application in consumer electronics such as air cleaners, water purifiers, toothbrush sterilizers, and other sanitary products.

 

A test at the Korea Conformity Laboratories (KCL) resulted in a removal of 99.99% of E. Coli, salmonella, and other germs within 5-liters of water contained in 25 minutes, meaning the same efficiency as with existing mercury UV lamp can be achieved.

 

 

UV-C LED offers many advantages compared to mercury UV lamps, such as energy efficiency, long life, compact size and more. However, until recently UVC LED did not come into mass production due to its limitations in terms of power. LG Innotek has resolved this issue with the development of a UV-C LED chip up to 10 mW at 100mA, the world’s highest. 

 

The product measures 6.8 x 6.8mm at only 1.35mm depth, has an improved optical efficiency by 15% compared to the mercury lamp and has achieved IPX7 level of Ingress Protection rating. The LED’s performance is unchanged even after being submerged in water at 1 m depth for 30 minutes. Without doubt LG Innotek’s new UVC LED will contribute to the further growth of UV LED disinfection applications worldwide.gm.