This high-power ultraviolet (UV) light source features a premium LG 5050 SMD LED chip pre-soldered onto a star-shaped 20mm aluminum metal-core printed circuit board (MCPCB). Emitting in the specialized 365nm -  370nm true UVA spectrum, this 10W module provides high radiant flux intensity while streamlining installation, making it a critical component for specialized industrial curing, scientific diagnostics, and high-purity fluorescence applications.

Specifications

• LED Chip Brand: LG (Genuine high-efficiency matrix)
• Form Factor / Package: 5050 SMD (5.0mm x 5.0mm footprint)
• Mounting Substrate: 20mm Star Aluminum MCPCB (Heat dissipation base)
• Peak Wavelength: 365nm - 370nm (True invisible-spectrum UVA)
• Maximum Power Dissipation: 10W
• Forward Voltage (Vf): Typically 3.6V - 4.2V DC
• Maximum Forward Current (If): Approx 700mA - 1000mA (Drive-current dependent)
• Viewing Angle: 120℃ - 140℃ wide uniform beam profile

Features

• True 365nm Specialty Output: Unlike inexpensive 395nm UV LEDs that emit a large amount of visible violet/purple glow, a 365nm chip sits in the almost completely invisible ultraviolet band. It produces minimal visible light bleed, meaning background materials stay dark while target fluorescent materials glow with sharp contrast.
• Aluminum Star MCPCB Core: The underlying 20mm aluminum base is engineered with high thermal conductivity. It acts as an immediate thermal bridge, spreading heat away from the microscopic silicon junction of the LED chip out to your main chassis cooling structure.
• High Radiant Flux Density: Built by LG with a heavy-duty semi-conductor layer, it yields excellent radiant energy per square millimeter, accelerating standard polymer cross-linking times dramatically.
• Pre-Tinned Solder Pads: The star board features large, clearly marked positive (+) and negative (-) contact pads, allowing for fast wire installation without risking direct thermal damage to the delicate 5050 SMD emitter package.

Understanding the 365nm Spectrum Advantage

• 395nm UV LEDs: Produce a strong, visible purple beam. This visible purple light washes out delicate details, making it poor for checking high-security currency features or minute fluid leaks.
• 365nm UV LEDs (This Chip): Produce a faint, pale-white tint to the naked eye, but unleash massive excitation energy. When this beam hits an invisible security mark, passport thread, or forensic spot, it bursts into brilliant luminescence against an otherwise pitch-black background.

Common Applications

• UV Adhesive & Resin Curing: Instantly hardening UV-reactive resins, optical cements, and protective PCB conformal coatings within seconds.
• Counterfeit & Document Validation: Instantly exposing hidden security threads, watermarks, and holographic seals on banknotes, passports, visas, and legal documents.
• Nondestructive Material Testing (NDT): Illuminating fluorescent dye penetrants used to find microscopic structural cracks, hydraulic oil leaks, and engine coolant breaches.
• Forensics & Sanitization Inspections: Tracking organic fluids, bio-stains, and mineral properties in laboratory or hospitality environments.

Critical Drivers & Safety Guidelines

• Constant Current Driver Required: CRITICAL: Do not connect this LED directly to a 12V battery or a fixed-voltage power supply. High-power LEDs are current-driven devices that suffer from thermal runaway. As the chip warms up, its internal resistance drops, causing it to pull more current until it burns out. You must power this chip using a dedicated Constant Current LED Driver configured between 700mA and 1000mA.
• Active Cooling/Heatsink Mandatory: A 10W LED generates an immense amount of localized heat. The 20mm aluminum star board is only a thermal spreader-it is not a standalone heatsink. You must bolt or bond the star board down to a larger aluminum block or finned heatsink using high-quality thermal paste or thermal epoxy. Running this chip for more than 5–10 seconds without an attached heatsink will permanently degrade or instantly burn out the LG emitter.
• Invisible Radiation Shielding Warning: Because 365nm light is mostly invisible, your eyes will not naturally trigger a blink reflex when looking at it. However, the high-power radiant energy output can cause rapid cornea damage or eye strain. Never look directly at the spinning light or reflections of an active 10W UV LED. Always wear certified UV-blocking safety glasses (rated for UV400 protection) while operating or test-firing this equipment.