On 30^th September 2017, Qingdao Jason Electric Ltd Co., one of major UV-C LEDs manufacture in the world, announced that they have successfully demonstrated 1000mW class high output power 275nm UV-C LEDs lamp. This research achievement has been attributed to their recent years’ progress on the production of 10mW UV-C LEDs with 10000hrs lifetime, and 100mW 6868 size packaged high power module for the flow water disinfection unit. The 1000mW lamp is made of total 9 6868 packaged LEDs connected by 3x3 array, as shown in figure 1.

Fig.1. 1Watt UV-C Lamp (Source: Qingdao Jason)

The 275nm UV lamp was measured for optical power using calibrated integrated sphere， the total optical power of 1036mW was measured at 1.35mA dc operation, this is the first demonstration of 1watt class UV-C LEDs in the world according to our knowledge. This high power lamp utilized the best material, chips, packaging and heat dissipation technology, solved the heating issue for such high power dissipation, the lifetime of the lamp is estimated to about 5000hrs. The current-power-spectra characteristic graph is shown in figure 2.

Fig.2. Current-Power-Spectra characteristic of 1Watt UV-C Lamp (Source: Qingdao Jason)

Bob Liang, the president of Qingdao Jason Ltd Co., said that successful development of 1 watt class high power 275nm UV-C LEDs lamp is a big step of the company’s strategy, which further strengthens our leadership in the UV-C LEDs market especially in China, and makes it possible for UV-C LEDs lamp to replace conventional mercury UV lamp in the areas like industry water treatment, air purification and large surface disinfection, while bacterial control for the common public areas such as shopping center, hospital, preliminary schools and commercial water drinking system is very meaningful.