Nanfeng County is located in the southeastern of Jiangxi Province, it’s a distinctive county because of the delicious orange, and it’s also a national key ecological function area. Nanfeng Orange has more than 1700 years’ history; there are more than 70 acres of planting area currently. Over the years, the tangerine not only the local […]
On the afternoon of May 18th, 2017, the “Made in Chengdu” and Projects supply and demand matchmaking conference of China Communications Construction Company Ltd. (hereinafter called: CCCC) was held at the Fairmont Hotel Ballroom in the middle of Tianfu Avenue, Chengdu. The supply and demand matchmaking conference was organized by Chengdu Municipal Commission of Economy […]
LED lamp life span test: Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Put 5pcs LED lights under environment temperature of 25℃, and test the initial lumen, power consume, color temperature and other parameters in rated input voltage; 2) After the testing, put the samples in a temperature of 25℃, […]
LED lamp Vibration testing Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Well packaged 5pcs LED lamps, and put on the vibration test bench; 2) Set the vibration machine speed to 300 rev /min, and vibrating amplitude to 2.54 cm, starts vibrating instrument; 3) According to the above method, vibrate […]
The constant temperature and humidity test: Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Put 5pcs LED bulbs in a constant temperature and humidity chamber, set relative humidity to 95%, and temperature to 45℃; 2) Light up the LED bulbs in rated input voltage for 48 hours; 3) Take out […]
The temperature cycling test: Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Put 5pcs LED lights in high and low temperature chamber, and this chamber can adjust temperature changing rate. 2) Input the rated voltage to the LED lights; 3) Set temperature range from -10℃ to 50℃, temperature speed rate: […]
Normal temperature, pressure and impact test: Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Put 5pcs LED lights under environment temperature of 25℃; 2) Input the rated voltage to the LED lighting; 3) Power on for 72 hours, and observe whether there is damage to the lamp, thermal deformation of […]
Low pressure, temperature and impact test Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Put 5pcs LED lights under environment temperature of -15℃; 2) Transfer input voltage to 0.9 times of LED lamp rated voltage by transformer. 3) Power on for 24 hours, and observe whether there is damage to […]
Test objects: LED lamps (lamps with LED Driver, finished products). Test method: 1) Put 5pcs LED lamps in a oven with temperature of 60℃; 2) Transfer input voltage to 1.1 times of LED light rated voltage by transformer. 3) Power on for 24 hours, and observe whether there is damage to the lamp, thermal deformation […]
A few days ago, Boston University sued complaints against Samsung Electronics LED patent violations in Massachusetts District Court. According to the complaint, the Boston University sued that Samsung “ongoing deliberately” infringe its patent, involved Patent No. 5,686,738 and 6,953,703. Complaints deem the tort occurred in the introduction and sale of LED devices, the device is […]