In order to continue to enhance our 730nm LED 3535 SMD, edison smd led 2835, chip led 220v 100w and provide more sophisticated features and performance, we actively introduce and learn from advanced technologies. We do not forget our original intention, forge ahead, and continue to develop high-end and advanced products to meet the diversified and all-round needs of customers and the market. Our company practices the new product development idea of 'original design, one step ahead', so that most of our products have become the benchmark of word-of-mouth in the industry and have been taken as the reference standard of the industry. Our company adheres to the principle of quality first, affordable price, and service first, sincerely welcome domestic and foreign users to come to consult and order.
Product Specs
Item Name: LED MODULE 10W 30VDC 300MA INPUT
Model Number: GF-10WCW-2020
Input Current: 300MA
Power: 10W
Input Voltage: 30-34VDC
LED package type:20*20mm size
Chips brand: Sanan or Bridgelux
Brightness: 120-130LM/W
Color: 6000K or 3000K
Higher light oulput is achieved in a more compact space and the light performance is not disrupfed by shadows or other obstacles to consistent performance.
With wireless bonded technology the chip can directly emit light from the top and the side with no wire bond casting shadows or creating uneven light distribution, providing 15% more light output.
10W-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 |

Flip chip LED has five major advantages:
1) Electrodes on the flip chip directly contact the ceramic substrate, and omits the need for sapphire substrate used in heat dissipation. Therefore, the chip can be driven by high current.
2) Improvements in heat dissipation, which in turn extends chip lifetime.
3) The wire-bonding free (without wire-bond) flip chip can reduce defect risks during packaging and operations.

We have also other COB LED with 14*14mm, 19*19mm and also 28*28mm size.
The lighting area is round type.
Here is the list for you to take reference:
Model No. | Power | COB Size | Emitting Surface | Voltage | Current | Lumen |
GF-3WW6-0502-X1 | 3W | 13.5*13.5mm | 10mm | 11-13V | 300mA | 110-130LM/W |
GF-5WW6-0502-X1 | 5W | 13.5*13.5mm | 10mm | 14-16V | 300mA | 110-130LM/W |
GF-7WW6-0702-X1 | 7W | 13.5*13.5mm | 10mm | 20-22V | 300mA | 110-130LM/W |
GF-10WW6-1002-X1 | 10W | 13.5*13.5mm | 10mm | 29-32V | 300mA | 110-130LM/W |
GF-12WW6-1202-X1 | 12W | 13.5*13.5mm | 10mm | 34-38V | 300mA | 110-130LM/W |
GF-12WW6-1202-X2 | 12W | 19*19mm | 15mm | 34-38V | 300mA | 110-130LM/W |
GF-15WW6-1502-X2 | 15W | 19*19mm | 15mm | 43-48V | 300mA | 110-130LM/W |
GF-18WW6-1802-X2 | 18W | 19*19mm | 15mm | 52-57V | 300mA | 110-130LM/W |
GF-20WW6-2002-X2 | 20W | 19*19mm | 15mm | 58-64V | 300mA | 110-130LM/W |
GF-30WW6-2002-X2 | 30W | 19*19mm | 15mm | 85-95V | 300mA | 110-130LM/W |
GF-30WW6-3002-X3 | 30W | 28*28mm | 22mm | 29-32V | 1500mA | 110-130LM/W |
GF-50WW6-1210-X3 | 50W | 28*28mm | 22mm | 29-32V | 1800mA | 110-130LM/W |
LED Dimension

Application![]()
Application: Flood light, high bay light, low bay light, street light, solar street light, yard lights, garden lights, underwater lights, lighthouse, aquarium etc

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.MKJ LED can provide 1w,3w,5w,10,20w,30w,50w,70w,100w high power LED and COB LED.

A. Excellent raw material supply chain, 99.99% purity gold, copper frame, standard cystal.
B. Superb craftsmanship, a 10years experienced technical team.
C. LED encapsulation standarization construction.
Service and FAQ
· Reply your inquiry within 12 working hours
· Well-trained and experienced staffs to answer all your inquiries in fluent English.
· Strict quality control procedures before shipment.
· Customized design is available.OME and ODM are welcomed
· Delivery the goods to our customer all over the world with speed and precision.

Q: Do you offer guarantee for the products?
A: Yes, we offer 4 years warranty to our products.
Q: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.
Secondly, during the guarantee period, we will send new LEDs with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.
Q: What is your terms of payment?
A: For small amount orders, 100% better paid by PayPal or T/T in advance. For large amount orders like more than 10000USD, 30% T/T in advance, balance fully paid before shipment.
Q. How to proceed an order for the led?
A: for some products, you can buy on our web directly; otherwise, please contact our sales:
Firstly, let us know your requirements or application.
Secondly, we quote according to your requirements or our suggestions.
Thirdly, customer confirms the samples and places deposit for formal order.
We try our best to provide customers with more professional, standardized, international Sigma 10W 15W 20W 30W 50W IP65 IP66 Full Spectrum Plant Fruit Green Vegetables Grow LED Growing Lampada Bombillas Luz Ampoule Foco Luminacion Lampara and services. Integrity, persistence, efficiency and transcendence are the company's corporate spirit, which is a high interpretation of customers, work and future development. We are based on honesty, adhering to the tenet of survive by quality, developing by innovation, and always regarding the needs of consumers as the starting point and foothold of the troupe.
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