Our 10w cob, 18W COB LED 6000K Ra90+, cob 30w led is known for its good price, beauty and practicality, and will be your first choice. We believe that long-term development can only be achieved in an era of complex, diverse and rapid changes. We closely focus on the development strategy of building a first-class enterprise and establishing a market-oriented operation and discipline mechanism. Our employees have a say in the operation of the enterprise, which makes them motivated to work harder, and the communication between employees and management is also very convenient. Our service philosophy is to think of our customers from the smallest detail.
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
With the help of the growing market demand in 40watt La Luminaria LED Solar Integrada (panel, inversor, bateria, luminaria), our company makes every effort to do a good job of supporting services to users and becoming a large supplier in the industry is the vision of our enterprise. We are in line with the modern enterprise spirit of managing quality and serving customers. Our requirement for employees is that they should first have the feelings of home and country, and integrate the feelings of loving the party, the country, the family and the enterprise.
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