koulate DX6 USB Rechargeable Quad LED Jade Appraisal Flashlight User Manual

1. Introduction

Thank you for choosing the koulate DX6 USB Rechargeable Quad LED Jade Appraisal Flashlight. This device is designed for detailed examination of jewelry, gemstones, and other materials, offering multiple light sources for comprehensive appraisal. Please read this manual thoroughly before use to ensure proper operation and longevity of your device.

Safety Information

• Do not look directly into the LED light when it is active, as it may cause eye strain or damage.
• Keep the device away from water and excessive moisture. This product is not water-resistant.
• Store in a cool, dry place when not in use.
• Keep out of reach of children.

2. Product Overview

The koulate DX6 flashlight features a durable 304 stainless steel and duralumin alloy construction, housing four distinct LED light sources and a large-capacity rechargeable battery. Its dual-headed design allows for versatile use.

Key Features:

• Quad LED Light Sources: White light (strong/weak), Light Yellow (strong/weak), 365nm UV light, and 395nm UV light.
• USB Rechargeable: Built-in 18650 lithium battery (3200mAh capacity) with USB charging.
• Durable Construction: Made from high-quality stainless steel and aluminum alloy.
• Power Protection: Features overload and excessive discharge protection.
• Compact and Portable: Designed for easy carrying and use.

Figure 2.1: The koulate DX6 Flashlight. This image displays the overall design of the flashlight, highlighting its dual-ended structure and the central control panel with buttons and a USB port.

3. Setup

Charging the Device:

1. Locate the USB charging port on the side of the flashlight's central body.
2. Connect the provided USB cable to the flashlight and to a compatible USB power source (e.g., power bank, laptop, USB wall adapter).
3. The indicator light will show the charging status. Ensure the device is fully charged before first use for optimal battery life.
4. The flashlight is equipped with power protection to prevent overcharging and excessive discharge.

Figure 3.1: Detail of the control panel. This image provides a close-up view of the flashlight's central section, clearly showing the two control buttons and the USB charging port.

4. Operating Instructions

The DX6 flashlight features two independent switches for controlling different light sources. The top switch controls the white and yellow lights, while the bottom switch controls the UV lights.

Switching Light Modes:

1. White Light / Yellow Light: Press the top button repeatedly to cycle through:
   • White Light (Strong)
   • White Light (Weak)
   • Light Yellow (Strong)
   • Light Yellow (Weak)
   • Off
2. UV Light (365nm / 395nm): Press the bottom button repeatedly to cycle through:
   • 365nm UV Light
   • 395nm UV Light
   • Off

Figure 4.1: Four light source identification. This diagram illustrates the four distinct light sources available on the flashlight: white light, yellow light, UV light 395nm, and UV light 365nm.

Using for Appraisal:

• White Light: Ideal for observing the internal texture and clarity of jade and other gemstones. The strong white light helps reveal fine details and inclusions.
• Light Yellow: Useful for examining specific color variations and subtle characteristics in certain stones where white light might be too harsh.
• UV Lights (365nm & 395nm): Essential for detecting fluorescence in gemstones, identifying treated stones, and verifying currency. Different UV wavelengths can reveal distinct reactions.

Figure 4.2: Jade appraisal with white light. This image demonstrates how white light is used to observe the internal texture and light transmission effects of jade, showing examples of amber and emerald rough stones.

Figure 4.3: Flashlight in use for appraisal. A hand holds the DX6 flashlight, directing its beam onto a jade stone, illustrating practical application.

5. Maintenance

Cleaning:

• Wipe the flashlight body with a soft, dry cloth.
• For stubborn dirt, a slightly damp cloth can be used, followed by immediate drying.
• Do not use abrasive cleaners or solvents, as these can damage the finish.

Battery Care:

• Recharge the battery regularly, even if not in frequent use, to maintain battery health.
• Avoid completely draining the battery before recharging.
• The device has built-in protection against overload and excessive discharge, but proper charging habits extend battery life.

6. Troubleshooting

7. Specifications

8. Warranty and Support

The koulate DX6 Flashlight comes with a standard manufacturer's warranty. For specific warranty details, returns, or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt as proof of purchase.