10W SMD High Power UV LED Chip - 405-410nm Purple (9-12V 1050mA)

Specifications:

• Wavelength: 405 - 410nm (Violet/UVA Border)
• Power Dissipation: 10 Watts
• Forward Voltage (VF): 9.0V – 12.0V DC
• Forward Current (IF): 1050mA (Nominal) 
• Radiant Flux: 2000 - 3000 mW 
• Viewing Angle: 120° Degrees (Wide Uniform Spread)
  
• Package Type: 10W COB / SMD (Multi-chip Array)
• Operating Temperature: -20°C to +60°C (Base Temperature)

Key Applications & Projects

• SLA/DLP 3D Printing: Post-curing station builds for 405nm sensitive resins.
• PCB Manufacturing: Rapid exposure of UV-sensitive solder masks and photoresists.
• Fluorescence Microscopy: Excitation source for specific bio-markers and dyes.
• Adhesive Bonding: Instant curing of UV-glues in glass and acrylic assembly.
• Art & Installations: High-power edge-lighting for "Glow-in-the-dark" reactive materials.

Project Evolution 

• Past Projects (Prerequisites): If you’ve used 5mm UV LEDs or low-power 3W beads, you’ve likely faced long wait times for resin to harden.
• Feature Upgrade: This 10W variant unlocks "Instant-Cure" capabilities, reducing post-processing time from minutes to seconds.
• Effort Level: Intermediate. Requires a Constant Current Driver and robust thermal management.

Virtual Technician & Wiring

• ⚠️ WARNING: This LED generates intense UV radiation. Avoid direct eye or skin exposure. Always wear UV-rated safety goggles.

  Thermal Management: You MUST mount this LED on a high-quality aluminum heat sink with thermal paste. Without active cooling or a large passive sink, the chip will fail within seconds.

Wiring:

• Positive (+): Marked with a '+' or a wide tab.
• Negative (-): Marked with a '-' or a narrow tab.
• Powering: Use a Constant Current LED Driver (900mA - 1000mA). Do not use a constant voltage power supply without a high-wattage current-limiting resistor.

​Packages include:

1 X 10W SMD High Power UV LED Chip - 405-410nm Purple (9-12V 1050mA)

Frequently Asked Questions (FAQ)

1. Is 405nm the right wavelength for 3D printing resin?
   Yes, almost all standard SLA/DLP resins are formulated to cure at exactly 405nm.
2. Can I use a 12V power supply directly?
   No, you must use a constant current driver to limit the current to ~1050mA.
3. Does this LED need a fan?
   For continuous use (over 30 seconds), a fan is highly recommended to extend the chip's life.
4. Is this LED waterproof?
   No, the COB surface is sensitive; protect it from dust and moisture.
5. How does this differ from 365nm UV?
   405nm is more "visible" (purple) and is generally safer and more effective for resin curing than 365nm.
6. Can it be dimmed?
   Yes, via PWM through a compatible Constant Current Driver.
7. What is the lifespan?
   Rated for 50,000 hours if the temperature is kept below 60°C.
8. Why does it have a copper base?
   Copper dissipates heat 2x faster than aluminum bases found on cheaper LEDs.
9. Is it compatible with Arduino?
   Yes, when used with a MOSFET or dedicated LED driver shield.
10. Does it come with the heatsink?
    No, this is the individual LED chip only.
11. Will this cure UV glue?
    Yes, most "invisible" UV glues react perfectly to the 405nm spectrum.
12. Is the light dangerous to skin?
    While safer than UVC, direct high-power exposure should be avoided.
13. Can I use this for indoor plant growth?
    It can be used for supplemental UV, but it is not a full-spectrum grow light.
14. What is the current draw at 10V?
    It typically draws around 700-800mA at 10V, peaking at 1050mA at 12V.
15. Can I solder directly to the tabs?
    Yes, use a high-wattage iron for a quick joint to avoid overheating the chip.
16. Why is it called "Purple" instead of "UV"?
    405nm is on the visible edge of the spectrum, appearing as a vibrant violet/purple.
17. How many individual dies are inside?
    It contains 9 high-power dies in a 3-parallel, 3-series configuration.
18. Can I use it for forensic money detection?
    Yes, it works for many security features, though 365nm is sometimes preferred for certain currencies.
19. What thermal paste should I use?
    Any high-conductivity non-conductive paste (like Arctic Silver) is ideal.
20. Is it Probots™ Secure-Transit  protected?
    Yes, we ship in specialized protective casing to ensure zero damage to the delicate COB surface.