We always focus on the needs of the demand groups, according to market research and customer demand feedback to improve the shortcomings of our own products and produce high-quality led chip 3w, led bulb dob, Epistar Smd 5050 Cool White for customers. The company focuses on technological innovation, resource integration, branding and market cultivation. Our company has become a leading domestic brand thanks to the long-term trust and support of our customers, and it is also the result of the collective efforts and hard work of all employees. The enterprise is guided by customer service, centered on science and technology, actively innovates and keeps pace with the world, and constantly climbs technological peaks; market-oriented. Continuously dedicate high-quality products to new and old customers
Product Specs
Item Name: LED COB 40W 12VDC input
Model Number: GF-40WCW-4046
Input Current: 1200MA
Input Voltage: 28-34VDC
LED package type:4046 size Base
Chips brand: Sanan or Bridgelux
Brightness: 120-130LM/W
Color: 6000K or 3000K
Flip Chip COB LED features compared with the classic COB LED:

(a) and 1(b) respectively show the schematic diagrams of a traditional wire-bond COB Chip and no wire-bond flip COB chip. In Figure 1(a), a traditional COB chip is bonded on the MCPCB substrate by bonding epoxy and connects to the circuit electrodes via two bonding wires. The thermal energy generated by the LED chip is dissipated through the chips’ sapphire substrate, bonding epoxy, followed by a MCPCB dielectric layer before reaching the metal core. On the other hand, the flip COB chip shown in Figure 1(b) has the LED chip directly bonded on the circuit electrodes without the bonding wire and epoxy. The heat generated by the LED is coupled through the chip bonding pads, circuit electrodes, MCPCB dielectric layer, and then diffused into the metal core. In comparison, the flip COB chip exhibits less thermal resistance as its thermal dissipating path excludes the sapphire substrate and bonding epoxy that are materials having higher thermal resistance.
10-100W FLIP CHIP COB LED Specs | ||||||
Power | Current(mA) | Voltage(VDC) | Chips brand | Chip Size | Color Temperature(K) | Lumen(lm) |
10W | 300 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
20W | 600 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
30W | 900 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
40W | 1200 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
50W | 1500 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
60W | 1800 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
70W | 2100 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
80W | 2400 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
90W | 2700 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
100W | 3000 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |

LED Dimension

Application

About GMKJ
Shenzhen Guangmai Electronics Co.,LTD.. (hereafter called GMKJ) is the integration of Independent R&D, Production, and Brand agency which is dedicated to providing LED light-emitting devices and LED light-emitting modules for small and medium enterprises (SME).

Company Mission :Relying on advantageous resources in China,we are willing to dedicate ourselves for LED industry by providing competitive products and solutions continuously!
Company Vision : Achieve a triple win situation (Customers,Partners,Employees).Strive to be a company of word of month(WOM).
Service and FAQ
Our Services/Why choose Us
Professional service: replied within 24 hours(at workdays).
2. We also can provide customized products, design according to your demand.
3. Reliable and stable quality: 100% testing for each piece. Automatic testing and bin code selection machine.
4. Experience: produce LED components for more than 14 years.
5. Advanced Equipment: ASM automatic production machines(biggest brand in LED automatic machines)

Q: How can I get a quotation from you?
A:Please kindly leave us messages about your needs,including products and quantity,our professional team will reply you very soon(mostly within few hours).
Q. Are you factory directly?
A:Yes, we have our own factory, all of our products are with competitive factory price.
Q: Do you accept Alibaba online orders?
A:Sure! ! We prefer to fulfil orders under Alibaba Trade Assurance system, since both parties will be protected.
Q: What’s your product range?
A:Our main products include:
·COB LED 2-400W
·Compact SMD LED 0.06W-5W
·Integrated Flip Chip LED Module 3-500W
·Power LED 1-5W
We can easily normally satisfy our respected buyers with our excellent high-quality, excellent selling price and good service due to we've been far more expert and more hard-working and do it in cost-effective way for Modern Star Moon Design False Ceiling Light LED for Bedroom. While creating profits and being responsible for the interests of shareholders, we also actively assume social responsibility. Our company has been following the corporate policy of 'taking integrity as the cornerstone, market as the link, quality for survival, innovation for development', and welcome your visit!
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