Nanjing Weishi Bo Electronics Co., Ltd
                                                                                                           
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7 Years
Since 2019
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3W High Power LED 5V DC With Built‑in Resistor 20mm Plum Aluminum PCB Cool White 6500‑7000K No Need Driver

Price Negotiable
Price: 0.2-0.5US dollars
MOQ: 1000
Delivery Time: 20-30 working days
Brand: weishibo
Product Description
3W High‑Power LED Module with Built‑in Current‑Limiting Resistor

5V Direct‑Drive Plum‑Shape Aluminum PCB LED Bead

Product Overview

This is a ready‑to‑use 3W high‑power LED light source pre‑mounted on a 20 mm plum‑star aluminum PCB board, integrated with onboard SMD current‑limiting resistor. It supports direct DC 5 V power input without external constant‑current driver circuits, greatly simplifying lighting project development. It delivers bright cool‑white output of 6500‑7000K with luminous flux 180‑240lm and 120° wide beam angle. The high‑conductivity aluminum substrate rapidly dissipates heat during continuous operation, minimizing light decay. This module is ideal for USB‑powered devices, DIY lighting builds, experimental projects and compact low‑voltage lamp equipment for hobbyists and OEM manufacturers.

Core Specifications
Parameter Details
Product Form Pre‑soldered LED Module with built‑in SMD current‑limiting resistor
PCB Type Plum‑Shape Star Aluminum PCB
PCB Dimension 20 mm diameter
Total Power Output 3W
Operating Voltage DC 5V (Direct drive, no constant‑current driver required)
Drive Current Range 550‑600 mA
Color Temperature 6500‑7000K Cool White
Luminous Flux 180‑240 lm
Beam Angle 120° Wide Beam
Thermal Design High‑thermal‑conductivity aluminum base for fast heat dissipation
Chip Construction Copper‑bracket LED chip with gold‑wire bonding
Polarity Marking “+ /‑” polarity printed clearly on PCB for error‑free wiring
Operating Temperature -40℃ ~ +80℃
Compliance RoHS, CE Certified
Key Advantages
  • 5V Direct‑Drive With On‑Board Resistor: Built‑in current‑limiting resistor removes the need for external driver hardware. Run directly from USB power banks, 5V adapters, lowering BOM cost and circuit complexity.
  • Optimized Plum Aluminum Heat Sink PCB: Star‑plum geometry maximizes heat‑transfer area. Superior thermal performance suppresses light decay and stabilizes brightness under long‑hour continuous working.
  • High‑Reliability LED Chip: Copper‑bracket plus gold‑wire bonding delivers consistent luminous performance, low thermal resistance and stable output.
  • Clear Polarity Indication: Explicit plus/minus silkscreen marking prevents reverse‑connection damage for fast, error‑free soldering and assembly.
  • Wide‑Angle Illumination: 120° beam angle provides broad flood coverage without extra secondary optics for many DIY applications.
  • Multi‑Color Customizable: Available in cool white, warm white, natural white, red, green, blue, yellow and purple to match diverse project requirements.
  • Plug‑and‑Play Light Source: Fully assembled module, no additional PCB assembly work required for rapid prototyping and mass production.
Primary Applications
  • USB‑powered portable lamps & desk fill lights
  • DIY hobby lighting & maker experimental projects
  • Small‑size spotlights and compact flood lights
  • Flashlight and headlamp modification builds
  • Educational teaching lab light modules
  • Decorative landscape & accent lighting
  • Industrial indicator and auxiliary illumination
  • Battery‑powered low‑voltage lighting equipment
Why Choose Our Products
  • All‑in‑one Integrated Design: Pre‑mounted LED + resistor + aluminum PCB, ready‑to‑install and saves your processing steps.
  • 100% Aging Burn‑in Testing: Every module undergoes power‑on burn‑in inspection before shipment to filter defective units.
  • Strict Binning Control: Tight sorting for color temperature and brightness, consistent performance across production batches.
  • Long Service Lifespan: Rated 50,000+ operating hours with minimal lumen depreciation under proper thermal conditions.
  • Flexible Stock Support: Large inventory for quick bulk order shipment; OEM & ODM customization options available.
  • Direct Factory‑Origin Pricing: Competitive manufacturer price without sacrificing quality standards.
  • Professional Technical Support: Engineering team available to assist you with lighting‑circuit integration and application guidance.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Nanjing Weishi Bo Electronics Co., Ltd
Location No. 86, Runqi Road, Dongshan Subdistrict, Jiangning District, Nanjing City, Jiangsu Province, China
Contact Person Scott

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