5V 3W red LED module with onboard resistor, plum aluminum substrate, 620-625nm, direct drive without constant current driver for DIY warning & decorative lights

This is a fully assembled 3W high‑power red LED light source mounted on a 20 mm plum‑star aluminum PCB board, equipped with an onboard SMD current‑limiting resistor. It supports direct DC 5 V power input and eliminates the need for external constant‑current driver circuits, streamlining product design and lowering overall BOM costs. The module outputs vivid saturated red light at 620‑625 nm wavelength with a 120° wide beam angle. Its high‑conductivity aluminum substrate delivers reliable heat dissipation during continuous operation, effectively suppressing light decay and stabilizing output performance. Perfect for OEM manufacturing, maker DIY projects, indicator lighting, decorative fixtures and low‑voltage red‑light application equipment.

• 5V Direct‑Drive With On‑Board Resistor: Integrated current‑limiting resistor removes requirement for external driver units. Works directly with USB power banks and 5V adapters, simplifying circuit layout and cutting component expenses.
• High‑Efficiency Plum Aluminum Heat‑Dissipation PCB: Special star‑plum outline expands heat transfer area. Outstanding thermal performance prevents overheating, reduces light decay and maintains stable brightness for long‑duration continuous operation.
• Premium Red LED Chip: Copper‑bracket structure with gold‑wire bonding delivers pure, consistent 620‑625 nm red spectral output, low thermal resistance and dependable long‑term performance.
• Clear Polarity Silkscreen: Distinct positive and negative markings on PCB avoid reverse‑connection damage for quick, error‑free soldering and assembly.
• Broad Flood Illumination: 120° wide beam angle achieves large‑area red lighting without extra secondary optical accessories for most DIY and fixture projects.
• Full‑Spectrum Color Options: Available in pure red, cool white, warm white, natural white, green, blue, yellow and purple for multi‑scene solution matching.
• Ready‑to‑Use Integrated Module: Complete pre‑mounted unit, no extra PCB processing needed for fast prototyping and mass‑production deployment.

• Red decorative lighting & accent ambient lamps
• USB‑powered portable signal warning lights
• DIY maker projects & laboratory experimental light sources
• Stage effect lights and landscape decorative fixtures
• Plant auxiliary supplementary lighting
• Safety indicator and warning illumination
• Modification of flashlights and special‑effect lamps
• Battery‑operated low‑voltage red light equipment

• Integrated All‑in‑One Design: LED chip + current‑limiting resistor + aluminum PCB pre‑assembled, saving your secondary processing steps.
• 100% Aging Burn‑in Testing: Every LED module undergoes full power‑on burn‑in inspection prior to shipment to screen out defective products.
• Strict Binning Control: Rigorous sorting on wavelength and brightness, ensuring uniform performance across all production batches.
• Extended Operational Lifespan: Rated 50,000+ working hours with minimal lumen depreciation under proper thermal conditions.
• Flexible Supply Capacity: Ample stock supports fast bulk‑order delivery; OEM & ODM customization services are available.
• Direct Factory Pricing: Competitive manufacturer‑direct cost without compromise on quality standards.
• Specialized Technical Support: In‑house engineering team offers guidance for lighting circuit design and product integration.