1. Introduction
The ORCATORCH D710V MK2 is a professional underwater video light designed for diving and underwater photography. It features multiple light sources including white, red, and UV, providing versatile illumination for various underwater scenarios. With a robust and waterproof design, this light is suitable for deep-sea exploration and capturing vibrant underwater imagery.

Image 1.1: Overview of the ORCATORCH D710V MK2 Diving Light, showcasing its 2300 lumens, 4 light modes, power status indicator, switch locking, 120-degree beam, IP68 waterproof rating, comfortable grip, aerospace aluminum construction, and impact resistance.
2. Product Features
- Triple Light Sources: Combines white, red, and UV light in one unit for diverse underwater lighting needs.
- High Brightness: Up to 2300 lumens in white light mode (high).
- Wide Beam Angle: 120° wide flood beam ensures even illumination for photography and video.
- Durable Construction: Made from high-strength aluminum alloy (A6061-T6) with military-grade III hard anodizing for corrosion resistance and durability.
- Waterproof Rating: IP68 rated, submersible up to 150 meters (492 feet) with triple O-ring seals.
- Smart Switch Locking: Prevents accidental activation and extends battery life.
- Power Indicator: Built-in LED indicator displays real-time battery level.
- Impact Resistance: Designed to withstand drops up to 1.5 meters (4.9 feet).

Image 2.1: Detailed view of the light head, illustrating the arrangement of White, Red, and UV LEDs for versatile underwater lighting and photography.

Image 2.2: The 120-degree super wide floodlighting provides broad and even illumination, eliminating blind spots for underwater photography.
3. Package Contents
Verify that all items are present in the package:
- 1 x D710V MK2 Underwater Photography Light
- 1 x USB Type-C Charging Cable
- 1 x ZJ18 Ball Joint Bracket
- 3 x Spare O-rings
- 1 x Lanyard
- 1 x User Manual
- 1 x Portable Zipper Bag

Image 3.1: All items included in the ORCATORCH D710V MK2 package.
4. Setup
4.1 Battery Installation and Charging
The D710V MK2 uses a Lithium-ion battery. Ensure the battery is fully charged before use. Use the provided USB Type-C charging cable to charge the light. The power indicator will show charging status.
4.2 Attaching the Ball Joint Bracket
The ZJ18 Ball Joint Bracket is designed to attach the light to any diving camera system. It is compatible with torches having diameters ranging from 23-27mm, offering versatility for various underwater photography setups.

Image 4.1: The ZJ18 Ball Joint Bracket provides convenient mounting for underwater photography.
5. Operating Instructions
5.1 Power On/Off and Mode Switching
The D710V MK2 features a side switch for operation. Press the switch to cycle through the different light modes: White High, White Low, Red Light, UV Light, and Off. The sequence may vary slightly; refer to the specific instructions in the included user manual for precise mode cycling.
5.2 Switch Locking Design
To prevent accidental activation and conserve battery, the D710V MK2 includes a switch locking feature. When the flashlight is off, press and hold the side switch for 5 seconds to lock it. To unlock, quickly double-click the button. The flashlight will blink twice to confirm the lock or unlock status. When in lock mode, the battery indicator will display green when the side button is pressed.

Image 5.1: The switch locking design helps prevent unintended operation.
5.3 Power Indicator
The built-in LED indicator on the side switch provides real-time battery status:
- Green Light: Battery level is above 40%.
- Red Light: Battery level is between 10% and 40%.
- Flashing Red Light: Battery level is below 10%, indicating a need for immediate recharging.

Image 5.2: The power indicator provides clear visual feedback on battery status.
6. Maintenance
6.1 O-Ring Care
Regularly inspect the O-rings for any signs of damage, cracks, or debris. Clean them with a soft cloth and apply silicone grease before each dive to ensure a watertight seal. Replace O-rings if they show any wear or damage.
6.2 Cleaning
After each dive, rinse the diving light thoroughly with fresh water to remove salt, sand, and other debris. Wipe it dry with a soft cloth. Do not use harsh chemicals or abrasive materials, as these can damage the finish or seals.
6.3 Battery Care
Store the battery in a cool, dry place when not in use. Avoid fully discharging the battery for extended periods. If the light will not be used for a long time, remove the battery and store it separately. Recharge the battery periodically to maintain its health.
7. Troubleshooting
- Light not turning on: Ensure the battery is fully charged and correctly inserted. Check if the switch is locked (refer to section 5.2).
- Water leakage: Immediately cease use. Inspect O-rings for damage or improper seating. Clean and re-grease O-rings, then reassemble carefully. If leakage persists, contact customer support.
- Reduced brightness or short run-time: Recharge the battery. If the issue persists, the battery may need replacement.
- Switch unresponsive: Ensure the switch is not locked. If unresponsive after unlocking, contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Light Source | White + Red + UV |
| Color Temperature | 6500K (Cool White) |
| Brightness Levels | White High: 2300 Lumens; White Low: 750 Lumens; Red: 150 Lumens; UV: 10 Lumens |
| Burn Time (Approx.) | White High: 1h 20mins; White Low: 2h 40mins; Red: 4h 10mins; UV: 2h 30mins |
| Beam Angle | 120 Degrees |
| Maximum Depth | Under water 150m (492ft) |
| Working Voltage | 2.8V - 4.2V |
| Impact Resistance | 1.5m (4.9ft) |
| Product Size | Length: 145.8mm (5.74inch); Tube: 27mm (1.06inch); Head Diameter: 36mm (1.41inch) |
| Underwater Weight | 145g (0.32lb) (Excluding battery) |
| Material | Aluminum Alloy A6061-T6 |
| Battery Type | Lithium-ion (1 C battery required) |

Image 8.1: Dimensions and material details of the D710V MK2.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official ORCATORCH website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.
10. Product Video
Video 10.1: An official product video showcasing the ORCATORCH D710V MK2 diving light's features, including its multiple light modes (white, red, UV), wide beam, switch locking, and waterproof capabilities in various underwater environments.