Designed to return to the 18W LED fluorescent lamp into the 20th century?

The rapid development and maturity of Led Lighting technology, the monopoly of traditional lighting sales and the replacement of LED energy-saving lamps in the "long-distance running" due to the rapid decline in price difference, the price of lighting fixtures represented by LED bulbs and LED fluorescent lamps is rapid "Shrinking" has made the cost of the civilian led lighting market almost equal to the price of high-end energy-saving lamps under the concern of consumers. In 2012, the 18W LED fluorescent tube entered the 50-yuan era. Then, in the second half of 2013, did the 18W LED fluorescent tube enter the 20-yuan era? The author analyzes the following aspects for reference only.
Medium power and COB light source cost-effective
The medium and high power represented by series of 2835, 4014, 5730, COB packaging has become a fast way for enterprises to reduce costs. At present, many enterprises indirectly reduce the cost of LED fluorescent tubes by seeking to reduce the cost of light sources. The 2835 package series has gradually become one of the main light sources for LED fluorescent tubes. The 2835 series is a 0.2W series product, so the number of LED fluorescent tubes used under the same power will be reduced by more than half, both in terms of manufacturing cost and light source cost reduction; from 2013, LED fluorescent tubes will form medium-power series LED fluorescent lamps. The LED fluorescent tube market is mainly supported by series of light sources such as 3528, 3020 and 3014.
More and more high-insulation housings suitable for mass production
Early LED fluorescent lamps were made of a fully plastic case with a non-isolated power supply and a φ5 LED straw hat tube. Light attenuation or short life due to heat dissipation problems. Nowadays, the luminous flux and power density of LED light sources are continuously improved, using fewer light sources, and the lower cost can meet the light output requirements of traditional lighting fixtures. At present, Philips, Benbon, Mulinsen, and Nengeng Optoelectronics have introduced LED fluorescent tubes with full plastic tube and glass tube structure.
Non-isolated power supplies will be mainstream applications in the next few years
Since the LED driver power supply technology has been updated for 3 months, and the speed of 6 months has been replaced, the domestic first-line semiconductor device manufacturers have introduced switch-driven integrated circuits with CCM or APFC constant current mode, which has achieved a direct resistance-resistance circuit in terms of cost. the price of. Among them, the high-voltage linear drive will delay the application due to the limitations of the technology. It should be noted that the outer casing needs to be made of high-insulation material such as plastic, ceramic or glass to avoid safety problems.
Page
Below we analyze the design idea of ​​low-cost 18W fluorescent lamp. If non-metallic lamp body structure is adopted, then only non-isolated switching power supply drive and linear high-voltage drive can be selected in the future. In practical applications, line high voltage is due to technical and application limitations. Do not discuss too much. The following considerations for mass production applications, please refer to the company's own business, for reference only: 18W LED fluorescent lamp instead of 40W traditional fluorescent lamp as an example, using 2835 light source, 1600LM requires about 96 LED light sources (1200LM generally requires 76 The number is too small, there will be obvious spots. The driving current is 60MA. At present, the unit price of 2835 Shenzhen first-line manufacturers is about 0.13 (Zhongshan also has 0.07 yuan/PCS); then the sum of lamp beads and patch fees: 2835 surface-mounted lamp beads LED The cost of fluorescent lamps is 0.13*96+0.015*96=13.92 yuan. If the outer casing is made of plastic or glass, the price is about 5 yuan. See the built-in back type (JW-FR20W) and single-ended plug type (JW-FR20W full voltage input high power factor version and JW-HR18W-PTS full voltage high power factor pin plug version / JW -LR20W-PT no stroboscopic economic version / JW-HR18W-RZS EMI certified version) Optional:
In summary, in general, the whole LED fluorescent lamp has the same luminous flux, the brighter the single lamp bead, the lower the cost; in terms of visual comfort, the number of lamps on the market currently is 76-96 2835/4014 Most of them are too bright and there will be discomfort. Then, the total BOM cost of fluorescent lamps can be 20-30 yuan.
After a series of high temperature, constant temperature and humidity, high pressure cycle switch impact and 2 months of lamp aging verification test, Delipo Optoelectronics' "See You" cost-effective drive brand has been released for use on bulbs, fluorescent lamps and ceiling lamps. The ultra-cost-effective driving power range is 1-20W. According to the subdivided varieties of bulb lamp 1-18W series, fluorescent lamp 6-20W series, can also be applied to downlight 6-20W series or COB package lamps, COB due to high overall light efficiency, good spot, low cost Another choice for LED luminaires, and the COB package series will become one of the main sources of LED lighting applications in the future. The COB package is also high voltage and low current. Due to the non-isolated design, the versatility of the luminaire is greatly reduced. At the same time, the conversion efficiency can be made very high, the heat generation is reduced, and the reliability of the illumination system is improved.

Grow Light Reflector

Grow Light Reflector,Outdoor Grow Light Reflector,Outdoor Lamp Cover,Grow Light Lamp Cover

Yangzhou Huadong Can Illuminations Mould Manufactory Co., Ltd. , https://www.light-reflectors.com