With strong technical strength, supply and marketing capabilities, our products are widely used in Epistar 660nm LED Chip For Plant Growth, diy led cob, red led grow light. We follow the concept of modern business management and continue to carry out technological innovation and new product development. Besides, we strive to expand the international market and some of our products have been sold overseas. While providing perfect products, enterprises also provide consumers with comprehensive after-sales service, which has become the new focus of modern enterprise market competition. Our company has a high-quality workforce, strict quality assurance system, strict management philosophy, good after-sales service, in the fierce competition in the industry, the rapid rise in the eyes of the majority of customers won good praise. Our domestic website's generated over 50, 000 purchasing orders every year and quite successful for internet shopping.
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
Based on the original products, our company continuously introduces new technologies and develops various new DJ Light LED Bee Eye Beam Wash 3*30W RGBW 4in1 LEDs to meet the needs of the market. We spare no effort to repay society with sincerity and hope to promote the common development of society. There is no deadline for our innovation. Our persistence in innovation stems from our pursuit of excellence.
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