We gradually realize that fine production method is a new production method to improve product quality and reduce production cost of our 3030 smd led back light, cob 300w, 12v 20w led. We welcome you to join us in this path of creating a prosperous and efficient business together. We adhere to the scientific, democratic and institutionalized direction, and firmly establish a firm belief, pay attention to conduct, advocate practical work, and encourage innovation. Advances in product technology can greatly reduce production time and product costs, thereby improving economic efficiency. We continue to absorb and introduce various professional technical and management talents, hoping to enrich the management team and strengthen technical productivity, so that our company can achieve long-term development.
Product Specs
Item Name: COB 300W LED Chip Warm White 3000K
Model Number: GF-300W6
Input Current: 9000MA
Power: 300W
Input Voltage: 30-34VDC
LED package type: Flip chip package
Chips brand: Sanan or Bridgelux
Brightness: 120-130LM/W
Color: 6000K or 3000K
COB LEDs are basically multiple LED chips packaged directly to a substrate by GMKJ to form a single LED module. The multiple chips take up less space and the highest potential of the LED chips can be obtained. When the COB LED package is energized, it appears more like a lighting panel.
With the advanced knowledge and packaging technology for years, GMKJ COB LED has excellent reliability and high-flux, multi-die chips in a smaller, easy-to-use platform. With GMKJ LED lighting-class reliability, Moonlight LED array's small, uniform emitting surface enables both directional and non-directional lighting with new levels of flux and efficacy. GMKJ COB LED series covers a wide range of luminous flux from 3W to 300W. The element arrangement of LED package is capable of utilizing light more effectively and higher performance. Due to success of reducing the thermal resistance significantly, GMKJ COB LED creates more options to match luminaire's products design with perfect performance, cost effective, high lumen density, etc.
10W-300W 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 |
150W | 4500 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
200W | 6000 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |
300W | 9000 | 28-34 | Sanan | 15*30mil*2 | 2600-7000 | 110-130lm/w |

Feature
Mirror aluminum lead frame.
Excellent color reproduction.
Available in a broad range of CCTs from 2600K to 6700K.
Wide range of luminous flux and high efficacy.
RoHS complaint.
Low thermal resistance.
Environment-friendly.
Long life span and high reliability.

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
GMKJ main products includes COB LED, flip chip COB LED, 3030 SMD LED, EMC 5050 SMD LED, ceramic 3535 SMD LED, 1-5W K2 High Power Emitter, Horticultural full spectrum LEDs, LED PCBA and LED modules with lens. GMKJ provides full-range of technical and professional support for LED light source design, solutions and lighting applications.

·Top 100 LED Chip manufacturer in China
·Obtained 200+ patents
·10000+ square meters
·SGS, TUV, BV, ISO9001 audited factory
·300+ employees
·30+ production lines: SMD workshop, COB workshop, SMT workshop
·100KK SMD LED per month
·3KK COB LED per month

Service and FAQ
a. Skilled workers and experienced QC for quality control.
b. Competitive price,superior quality & faster serivce.
c. Can be customized according to customers demand.
d. For your inquiry, we're to reply in detail within 24hours.
e. 2-5 years warranty time.
f. Lead time: 5-7 workdays for sample order,12-15 workdays for official order
g. We're dedicated to supply most suitable product, provide best sales& after-sale services to you. 
Q1. Are you a manufacturer?
A: Yes, we are the manufacturer. You are warmly welcome to visit our factory in Shenzhen, China.
Q2. Do you have any MOQ limit for led driver & light & accessories order?
A: The MOQ is 2pcs for sample checking is available. We welcome sample order to test and check quality.
For formal order, the MOQ is 100pcs/item/size.
Q3. Is it OK to print my logo on led driver & light product and use my own package and trade mark?
A: Yes. Normally we offer white inner box and carton box. Use your own design is ok. Please inform us
formally before our production and confirm the design firstly based on our sample.
Q4: Does your company accept OEM?
A: Yes, welcome OEM!
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.
We regards two things as basic principles, which are human resource and technology-orientation. With more than a decade of experience in High Power 150W 200W 300W Bridgelux LED COB Chip Board 34.85*34.85 with Ce RoHS as well as communicating with customers, we are very confident to offer advanced and satisfactory products to customers! Our product quality and performance are stable, and the workmanship is exquisite. Small business check out to our factory in Uganda can also be welcome at any time.
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