3W Power LED UV 390–395nm 🔦

Periled high-power UV LED bead, built with a genuine Epileds (Taiwan) chip for reliable performance and consistency. This single, round 3 W UV LED emitter delivers a 390–395 nm wavelength, ideal for UV-A applications in electronics, inspection, and maker projects with Arduino, Raspberry Pi, and other microcontroller platforms.

Technical Specifications ⚙️

• Brand: Periled
• Chip Manufacturer: Epileds (Taiwan)
• Product Type: Single LED light bead (high-power emitter)
• Shape: Round
• Power Rating: 3 W
• Forward Voltage (Vf): 3.4–3.8 V
• Forward Current (If): 590–700 mA
• Luminous Flux: 5–10 lm
• Wavelength (UV-A): 390–395 nm
• Beam Angle: 120°
• Operating Temperature: −20 °C to 60 °C
• Lamp Body Material: Copper bracket
• Life Span: 50,000 hours

Key Features ✅

• High efficiency with low heat generation for stable operation and reduced energy use ⚡
• 3 W UV-A output (390–395 nm) suited for fluorescence excitation, curing, and inspection 🧪
• Instant start with no flicker for consistent illumination 🚀
• Solid-state, shockproof construction for durability in lab and field use 🔧
• Long service life (up to 50,000 hours) lowers maintenance costs ⏱️
• Supports PWM dimming via a constant-current driver for Arduino/Raspberry Pi control 🎛️
• Environmentally friendly with reduced power consumption and carbon footprint 🌿

Integration Tips for Arduino, Raspberry Pi, and Microcontrollers 🛠️

• Use a constant-current LED driver rated for 700 mA; do not connect directly to a 5 V supply or GPIO.
• Typical drive: If ≈ 590–700 mA, Vf ≈ 3.4–3.8 V. Ensure your driver’s compliance voltage covers this range.
• For dimming, apply PWM from your microcontroller to the driver’s control pin.
• Heatsinking required: Mount the LED to an aluminum PCB or heatsink to manage thermal load and maintain lifespan 🌡️.
• Observe polarity and implement ESD protection during handling.

Typical Applications 💼

• Fluorescence and UV inspection (PCB tracing, resin checks, mineral/ink verification)
• UV curing for resins, adhesives, and 3D printing post-processing
• Leak detection with UV dyes and security/authentication lighting
• Education and lab experiments with electronics modules and microcontrollers

Safety Note ⚠️

UV-A light can be harmful with prolonged exposure. Use appropriate eye and skin protection and avoid direct viewing at close range.