Introduction
The NITECORE GEM10UV is a specialized ultraviolet (UV) flashlight designed for professional gem identification, currency verification, and forensic analysis. Its powerful UV LED and precise brightness control make it an essential tool for various applications requiring detailed inspection under UV light.
A sleek, black NITECORE GEM10UV flashlight with a silver rotary switch and bezel, showcasing its compact and ergonomic design.
Product Features
- Powerful Ultraviolet LED: Equipped with a 365nm UV LED, providing 3000mW of power for accurate identification of amber, diamonds, and other fluorescent materials.
The NITECORE GEM10UV flashlight emitting 365nm ultraviolet light onto a diamond ring, highlighting its use for authenticity and fluorescence identification.
- Infinite Brightness Control: A rotary switch allows for seamless adjustment of brightness levels, from ultralow to turbo, to suit different gemstone types and inspection requirements.
A detailed view of the flashlight's rotary switch, demonstrating its function for adjusting brightness levels. The design allows for easy operation, even when wearing gloves.
- Compact and Lightweight Design: Weighing only 2.34 ounces (without battery), its ergonomic design ensures comfortable one-handed operation.
- Extended Runtime: Capable of running for up to 500 hours on a single 18650 rechargeable battery. Also compatible with two CR123A or RCR123 batteries.
The NITECORE GEM10UV flashlight positioned beside an 18650 battery, emphasizing its impressive runtime of up to 500 hours and compatibility with various battery types.
- Versatile Applications: Ideal for gemstone identification, currency verification, forensic analysis, and security tasks.
A visual guide showing how different gemstones react under UV light: amber fluorescing, a diamond glowing blue, and natural jade appearing transparent, all illuminated by the GEM10UV.
- Durable Construction: Made from aluminum with an IPX8 waterproof rating, submersible up to 2 meters.
Setup
Battery Installation
- Unscrew the tail cap of the flashlight by turning it counter-clockwise.
- Insert one 18650 Lithium-Ion battery with the positive (+) terminal facing towards the head of the flashlight, or two CR123A/RCR123 batteries with the positive (+) terminals facing towards the head.
- Screw the tail cap back on clockwise until it is securely tightened.
Note: Ensure correct battery polarity. Incorrect insertion can damage the device.
Included Accessories
The NITECORE GEM10UV comes with the following accessories:
- Holster
- Lanyard
- Spare O-ring
Operation
Power On/Off
To turn the flashlight on, rotate the rotary switch clockwise from the 'OFF' position. To turn it off, rotate the switch counter-clockwise back to the 'OFF' position.
Brightness Adjustment
Once the flashlight is on, continue rotating the rotary switch clockwise to increase the brightness. Rotate it counter-clockwise to decrease the brightness. The brightness is infinitely variable, allowing for precise control.
Recommended Uses
- Gemstone Identification: Observe fluorescence in diamonds, amber, and other minerals.
- Currency Verification: Detect security features on banknotes.
- Forensic Analysis: Identify bodily fluids or other trace evidence.
- Security: Aid in various security inspection tasks.
Maintenance
Cleaning
Wipe the flashlight body with a clean, soft cloth. For stubborn dirt, a slightly damp cloth can be used. Do not use abrasive cleaners or solvents.
O-Ring Lubrication
Periodically lubricate the O-rings with silicone grease to maintain the waterproof seal. Replace worn O-rings with the provided spare.
Storage
When storing the flashlight for extended periods, remove the battery to prevent leakage and damage to the device.
Troubleshooting
Flashlight Does Not Turn On
- Check Battery Installation: Ensure the battery is inserted with correct polarity (+/-).
- Battery Charge: Verify that the battery is fully charged. Replace with a fresh battery if necessary.
- Battery Type: Confirm that you are using a compatible 18650 or CR123A/RCR123 battery. Note that some flat-top 18650 batteries may be too short; use button-top 18650s or those with protection circuits.
- Tail Cap Connection: Ensure the tail cap is fully tightened to establish electrical contact.
Dim or Flickering Light
- Low Battery: The battery may be low. Recharge or replace the battery.
- Loose Connections: Tighten the tail cap and head assembly to ensure good electrical contact.
- Dirty Contacts: Clean the battery contacts and flashlight contact points with a cotton swab dipped in rubbing alcohol.
Specifications
| Feature | Detail |
|---|---|
| Model | GEM10UV |
| Light Source | Ultraviolet LED (365nm) |
| Light Source Wattage | 3000 Milliwatts |
| Brightness | 30000 millicandela (variable) |
| Power Source | Battery Powered |
| Compatible Batteries | 1 x 18650 Lithium Ion or 2 x CR123A/RCR123 |
| Voltage | 3 Volts |
| Runtime | Up to 500 hours (on lowest setting with 18650) |
| Material | Aluminum |
| Color | Black |
| Item Weight | 2.34 ounces (without battery) |
| Dimensions (LxWxH) | 1 x 1 x 5 inches |
| Water Resistance | IPX8 (2m submersible) |
| Special Features | Adjustable Brightness, Easy To Use |
Warranty and Support
Manufacturer's Warranty
The NITECORE GEM10UV is covered by a 5-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims or technical support, please contact Nitecore customer service or visit their official website.
Proposition 65 Warning
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
