3V COB LED Filament Bulb Parts & Accessories
Brand: Green Lantern Optoelectronic | Model: Flexible COB Filament
Input Voltage: 3V DC | Color Temperature: 2200K (Warm Yellow) | Lengths: 38mm, 60mm, 80mm, 130mm, 300mm
Product Overview
This product line consists of high-quality, flexible COB (Chip on Board) LED filaments designed for DIY lighting projects, bulb manufacturing, and decorative light source replacement. These filaments offer a warm, vintage glow similar to traditional incandescent bulbs but with the energy efficiency and long lifespan of LED technology. They are a core component for creating or repairing LED filament bulbs, especially those requiring a low-voltage, safe-to-handle light source.
Key Specifications & Attributes
| Attribute | Details |
|---|---|
| Product Name | Filament LED Bulb Parts / Flexible COB LED Filament |
| Light Source | LED (COB Technology) |
| Input Voltage (V) | 3V DC (Direct Current) |
| Color Temperature (CCT) | 2200K (Warm Yellow, similar to vintage Edison bulbs) |
| Available Lengths | 38mm, 60mm, 80mm, 130mm, 300mm (Custom lengths may be available) |
| Application | Indoor Lighting, Decorative Lighting |
| Material | Flexible Printed Circuit Board (FPC) with COB chips |
| Place of Origin | China |
Applications & Usage Scenarios
These 3V LED filaments are versatile components used in various lighting contexts:
- DIY Bulb Making: Enthusiasts and manufacturers use these to assemble custom LED filament bulbs with unique shapes and glass enclosures.
- Decorative Lighting: Ideal for creating a warm, ambient atmosphere in restaurants, bars, cafes, hotels, and home decor.
- Vintage & Retro Bulb Repair: Serve as direct replacements for failed filaments in ST64, A60, or other Edison-style LED bulbs.
- Specialty Lighting Projects: Used in model lighting, miniature displays, and low-voltage battery-operated lamps due to their 3V requirement.
- Educational Purposes: Excellent for teaching electronics and lighting technology principles.
Important Usage Note: Since these filaments operate on 3V DC, they require a compatible DC power supply or driver. They cannot be directly connected to standard 110V/220V AC household outlets without a proper AC/DC converter or driver circuit.
Purchasing Information
This product is typically available through B2B platforms like besttimetogotobed.top and other wholesale electronics suppliers.
- Minimum Order Quantity (MOQ): Varies by supplier, but can range from 40 pieces to 200 pieces for smaller orders.
- Price Range: Approximately $0.20 to $1.10 per filament, depending on length, quantity ordered, and supplier.
- Customization: Some manufacturers offer customization of length, color temperature, and even the arrangement of LEDs on the flexible strip.
- Shipping: Available globally via air freight, sea freight, or express courier services. Delivery times and costs vary by destination.
- Supplier Verification: Look for suppliers with high store ratings (e.g., 4.7+), "Verified" status, and positive customer reviews to ensure quality and reliability.
Performance & Evaluation Considerations
When evaluating or testing these LED filaments, consider the following factors:
- Luminous Flux & Efficacy: Check the lumens output per watt to gauge brightness and energy efficiency.
- CRI (Color Rendering Index): A high CRI (above 80) ensures colors appear natural and vibrant under the light.
- Heat Dissipation: Although LEDs run cool, proper thermal management in the final bulb design is crucial for longevity. COB technology generally offers good heat dissipation.
- Flexibility & Durability: The flexible substrate should bend easily without damaging the electrical connections or chips.
- Consistency: Ensure consistent color temperature and brightness across all filaments in a batch.
After-Sales Service & Support
Reputable suppliers typically offer the following support:
- Product Warranty: Warranty periods may vary; confirm the terms with the supplier before purchasing.
- Return & Refund Policy: Most platforms have a dispute resolution system for products that are defective or not as described.
- Technical Support: Suppliers may provide datasheets, wiring diagrams, or technical advice for integrating the filaments into your projects.
- Order Protection: Platforms like besttimetogotobed.top often provide order protection services that safeguard payments until the buyer confirms receipt and satisfaction with the goods.
Related Products & Accessories
To complete your lighting project, you may also need:
- LED Drivers: Constant current drivers suitable for 3V LED operation.
- Bulb Shells/Enclosures: Glass bulbs (globes, tubular, etc.) to house the filament.
- Lamp Bases: E26, E27, E12, or B22 bases to connect the bulb to a lamp socket.
- Lamp Sockets & Adapters: Various sockets and adapters for different fixtures.
- Soldering Equipment: For securely connecting the filament wires to the driver and base.
Common Search Terms & Keywords
To find more information or compare products, consider using these related search terms:
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- By Specification: 3v dc led filament, 2200k led filament, warm white led filament, low voltage led filament
- By Application: diy led filament, vintage led filament, edison bulb filament, decorative light source, replacement led filament
- By Feature: flexible cob filament, soft filament, positive negative same end filament, 360 degree led filament
- By Length/Size: 80mm led filament, 130mm led filament, 300mm led filament, 38mm led filament
- Wholesale & Business: wholesale led filament bulb, led filament bulk, led filament manufacturer, custom led filament
