Shenzhen publishes trial version of LED street light standard

Shenzhen publishes trial version of LED street light standard
In order to promote the rapid development of the LED industry, Shenzhen recently released the "Technical Specifications and Energy Efficiency Guidelines for LED Road Lighting Products (Trial)". The specification for the first time in the "energy efficiency requirements" on the application of LED road lighting products after different road lighting power density values ​​are clearly specified.
In other similar standards or specifications, the "Code" fully considers that LED road lighting products have comprehensive and stable verifiable quality and performance, and the selected indicators and test methods have strong verifiability and operability, and Tightly combining with the regional climate characteristics of Shenzhen, special requirements are made on lightning protection performance and typhoon resistance performance when formulating product safety requirements.
For the first time, the specification also clearly stipulates the lighting power density values ​​of different roads after the application of LED road lighting products in terms of "energy efficiency requirements", and separately divides the energy efficiency grades according to the products of different color temperature categories to control the energy saving of LED lighting products Guiding recommendations are given in terms of functional requirements.
Introducing the difference between pop3 and imap in the technical zone. Understanding the difference and connection between POP3, SMTP and IMAP in one article. Understanding the difference between 802.11ac and 802.11n View 802.11ac protocol _View 802.11ac protocol method (computer, mobile phone, routing

Pressure Gauge

Pressure Gauge,Manometer Pressure Gauge,Automobile Pressure Gauge,High-Quality Pressure Gauges

ZHOUSHAN JIAERLING METER CO.,LTD , https://www.zsjrlmeter.com