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Built for Makers Robotics • Electronics • DIY

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9W Blue LED PCB AC Driver-on-Board (DOB) Circular Plate for Bulbs (20 LEDs)

Component	Specification
Power Rating	9 Watt
Input Voltage	220V - 240V AC (Direct)
LED Count	20 High-Intensity SMDs
Color	Sapphire Blue
Circuit Type	DOB (Driver-on-Board)
Form Factor	Circular PCB
PCB Diameter	~38mm
PCB Thickness	~2.3mm

Price

🚚 Ships within 24 Hours
📦 Pan India Delivery

₹ 12.71

(Tax included)

Barcode: 704060

Product Description The 9W AC DOB Blue LED PCB is an integrated lighting solution designed for high-voltage applications without the need for an external driver. Utilizing Driver-on-Board (DOB) technology, the power management components are mounted directly on the aluminum substrate. With 20 high-performance blue SMDs, it emits a vibrant sapphire glow. This PCB is the professional choice for repairing blue LED bulbs, creating architectural accent lighting, or building custom high-visibility industrial signals.

Key Features

Integrated DOB Technology: Direct 230V AC input—eliminates the need for a separate, bulky LED driver.
High-Density Output: 20 SMD LEDs provide a rich, uniform blue light spread across the circular plate.
Standard Fitment: Designed to fit perfectly into standard 9W LED bulb housings (B22 or E27).
Thermal Efficiency: Built on an aluminum-core PCB to help manage heat during continuous operation.
Simple Wiring: Features clearly marked Line (L) and Neutral (N) pads for quick soldering.

Technical Details

Connection Points: L (Line) and N (Neutral)
Wavelength: 450nm – 465nm (Deep Blue)
Base Material: Aluminum Core MCPCB
Operating Temp: -10°C to +60°C

Prototyping and Engineering Tips from Robogears

The Heatsink Rule: These DOB plates get very hot very quickly. You must apply Thermal Silicone Paste and mount the PCB to a metal heatsink (like the aluminum body of a bulb). Running it "open-air" without a heatsink will burn out the LEDs in minutes.
High Voltage Safety: Since this connects directly to 220V AC, ensure the power is off before handling. Always insulate your connections and ensure the PCB does not touch any conductive parts of your housing.
Surge Protection Tip: While these have on-board protection, adding an external MOV (Metal Oxide Varistor) in parallel to your AC input can significantly extend the life of the board against local power surges.
Creative Uses: These are excellent for creating high-power "night light" fixtures, festive garden globes, or underwater-themed room accents (when placed in a waterproof housing).

Package Includes

1 x 9W AC DOB Blue LED Circular PCB (20 LEDs)

Disclaimer Images are for reference; actual layout may vary slightly by production batch. HIGH VOLTAGE WARNING: This product connects directly to AC mains. Use with extreme caution. Professional installation is recommended.