7W DOB LED PCB Board 41.7mm 220V for A55 LED Bulb
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- Sample Support
- Stable Quality Control
- OEM Custom Design
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Product Description
Product Description
7W 9V Chips DOB LED PCB 41.7mm for A55 LED Bulb
High Efficiency · Reliable Performance · Long Lifespan
Our 7W High Brightness 9V DOB LED PCB is designed with a 41.7mm aluminum board for A55 LED bulb assembly and production. The integrated driver-on-board design combines the LED driver circuit and LED PCB into one compact module, helping simplify bulb assembly while providing stable operation at 220V.
With selected LED chips, reliable electronic components and efficient heat dissipation, this 7W DOB PCB delivers consistent lighting performance for LED bulb manufacturers and lighting assemblers. Different CCT options and OEM specifications are available according to target market and production requirements.
· Product Parameters
| Parameter | Specification |
| Product Type | DOB LED Module |
| Power | 7W |
| LED Chips Series | High Brightness 9V Chip Series |
| Input Voltage | AC220-240V |
| PCB Size | 41.7mm |
| LED Quantity | 8pcs |
| Luminous Efficiency | 120 lm/W ±10% |
| CRI | Ra ≥80 |
| CCT | 2700K/3000K/4000K/6500K/7400K |
| PCB Material & Thickness | Aluminum PCB, 1.0mm |
| Application | LED bulb / matched lamp application |
· Core Component Advantages
LED Chips: Selected high-brightness LED chips provide stable lumen output, good consistency and reliable performance for the 7W DOB LED PCB under continuous operation.
IC / Integrated Circuit: Constant-current control helps stabilize power output. Protection design can improve operating reliability when used within the specified electrical conditions.
Capacitor: Selected capacitors with suitable voltage endurance and temperature rating support smoother operation and longer service life.
Inductor / Transformer: Copper winding and a matched magnetic core help provide stable current control and reliable electrical performance.
PCB Board: Aluminum PCB construction supports efficient heat dissipation and stable operation of the LED and driver components.
Our DOB: Higher-specification LED chip solution, matched inductor/transformer, selected capacitors and a thicker aluminum PCB can provide better consistency and long-term stability when these specifications are confirmed for the product.
· SMT Production & Quality Control
DOB modules are produced through a standardized SMT manufacturing process. Controlled solder paste printing, component mounting, reflow soldering, electrical testing and visual inspection help improve batch consistency before packing.
Process: PCB loading → Solder paste printing → LED/component mounting → Reflow soldering → Electrical test → Visual inspection → Packing
· Applications
DOB solutions can be developed for different LED lighting products according to board shape, power, input voltage, thermal design and lamp structure. The exact compatibility should be confirmed for each model.
- LED Bulb
- Small LED Bulb
- Residential Lighting
- Indoor General Lighting
- OEM LED Bulb Assembly
- Customized Lamp Applications
· OEM & Customization Support
We support practical OEM and product-matching services for DOB modules, LED PCB/MCPCB and related LED lamp parts. Customers can provide the target wattage, lamp housing, board size, input voltage, CCT and other requirements for evaluation.
- Custom wattage and board size
- CCT and LED quantity options
- PCB / circuit design adjustment
- Lamp housing matching
- Sample support before bulk production
- SMT assembly support
- Private label / logo support subject to order quantity
Test Report
Test Report
Each DOB module is tested for electrical performance, luminous output and quality consistency before shipment. Test reports and related quality documents are available for reference according to the selected model.
View Test Reports & Quality Documents →
Packing Details
Packing Details
Packing is arranged according to the product model, order quantity and shipping requirements. Standard export packing is available, and customized packing can be discussed for bulk orders.
View Packing Information →
FAQ & RFQ
FAQ & RFQ
Have questions about DOB LED modules?
Find practical answers about product selection, customization, voltage, samples, quality and OEM support. If you have a specific project, send us your requirements for a suitable recommendation and quotation.
·FAQ
Q1. How do I choose the right DOB module for my LED bulb?
Please provide the target wattage, bulb housing size, input voltage, PCB diameter, CCT and expected brightness. We can recommend a suitable DOB specification according to your lamp structure and target market.
Q2. Can the DOB module be customized?
Yes. We can customize the wattage, PCB size, LED quantity, CCT, circuit design and component specification according to your project requirements. Housing matching and sample development are also available.
Q3. What input voltage does this DOB module support?
The input voltage depends on the specific model and circuit design. Our DOB modules can be developed for different market voltage requirements. Please confirm the required input voltage before placing an order.
Q4. Can I test samples before placing a bulk order?
Yes. Samples are available for specification confirmation, lamp matching and performance testing before mass production. Sample availability and cost depend on the model and quantity.
Q5. What affects the lifetime and stability of a DOB module?
DOB performance is influenced by LED chip quality, IC design, capacitor specification, inductor/transformer quality, PCB thickness, heat dissipation and actual working conditions. Proper lamp structure and thermal design are also important for long-term performance.
Q6. Do you support OEM and SKD lighting projects?
Yes. We can support DOB modules, PCB/MCPCB, drivers, bulb housings and related LED lamp parts for suitable OEM and SKD projects. We can also assist with product matching, sample development and assembly coordination.
· Contact & Inquiry
Looking for a DOB LED module for your bulb or lighting project? Send us your target wattage, board size, input voltage, CCT and expected quantity. We can recommend a suitable specification and provide sample or quotation support.
