Hong Kong big research and development passive LED power supply, life long can save maintenance expenses

There are more than one hundred and forty thousand traditional high voltage lamps in Hongkong, but they are less energy consuming and not environmentally friendly. The "passive LED power supply", which has been patented by the University of Hong Kong and the Hong Kong merchants, is nearly 70% energy compared to the traditional high voltage sodium lamp Province, and the life span is estimated for up to 15 years, and the length of the traditional LED street lamp is 5 years. The technical leader acknowledges the technical cost of passive LED power supply, which is higher than the "active power supply" used by the traditional LED street lamp, but it can save the maintenance expenses for the users in the long run, and the material is relatively easy to recover.

It is reported that the "passive LED power", which is patented by the University of Hong Kong R & D and Federal Group Global Limited, can be used to overcome the difficulty of operating at high temperature. It can be used at least 60 thousand hours, and it can be used for up to 15 years by 4000 hours a year.

Wang Hanbang, chief executive of Federal Group Global Limited, explained that "passive LED power" technology is not affected by the temperature of the "electrolytic capacitor", plus the power can be offset by the powerful radiation electromagnetic interference produced by lightning, so that the failure rate can be greatly reduced, thus reducing maintenance costs.

However, Wang Hanbang admits that the cost of passive LED power supply is about one thousand and two hundred yuan, far from the cost of "active LED" about four hundred yuan, but he quotes a trial plan in Heshan, Jiangmen, that more than three hundred "passive LED power" powered street lamps have been used for nearly four years without any damage. Maintenance cost.

It is reported that the new LED lamp has won the special and special gold medals for the Geneva International Invention Exhibition. There are 13 lights in Hongkong and Sha Tin.

Source: Urban Daily

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