1. Introduction
Thank you for choosing the Warsun Y40 COB Inspection Lamp. This versatile and durable portable lantern is designed for various applications, including car inspection, garage work, hiking, camping, and general repair tasks. Featuring multiple light sources, a powerful rechargeable battery, and convenient charging options, the Y40 is built to provide reliable illumination wherever you need it.
2. Safety Information
- Do not look directly into the light source when it is on, as this may cause temporary vision impairment.
- Keep the device away from extreme temperatures, direct sunlight, and corrosive materials.
- Do not attempt to disassemble or modify the lamp, as this will void the warranty and may cause damage or injury.
- Keep out of reach of children.
- Dispose of batteries according to local regulations.
3. Product Overview
The Warsun Y40 COB Inspection Lamp combines robust construction with advanced lighting features. It includes a main COB LED panel for broad illumination, a P8 LED for a focused spotlight, and red light modes for warning or specialized uses. The lamp is equipped with a magnetic base and an adjustable stand for hands-free operation.

Figure 3.1: Front view of the Warsun Y40 COB Inspection Lamp.

Figure 3.2: Solar panel for emergency charging.

Figure 3.3: Adjustable stand and magnetic base for versatile positioning.

Figure 3.4: Bright COB LED panel for wide area illumination.
Video 3.1: Product demonstration showcasing light modes, magnetic base, and adjustable stand.
4. Specifications
| Feature | Detail |
|---|---|
| Model Number | Y40 |
| Material | ABS+TPR |
| Light Source | 1*P8 + 24*COB + 12*COB (LED bulbs) |
| Brightness | 1000Lm (main) + 500Lm (side) |
| Switch Modes | 6 Light Modes |
| Protection Level | IPX5 |
| Battery Type | Polymer Lithium Battery 4000 mAh |
| Power Source | Rechargeable Battery |
| Voltage Type | Type-C |
| Weight | 186g |
| Endurance Time | 3-8 hours |
| Charging Time | 5 hours |
| Product Size | 15 x 73 x 141 mm |
| Height of Fall Resistance | 3 meters |
| Certifications | CE, EMC, FCC, ROHS |

Figure 4.1: Detailed product parameters and dimensions.
5. Setup
- **Initial Charge:** Before first use, fully charge the Warsun Y40 using the provided Type-C cable. Connect the cable to the Type-C port on the lamp and a suitable USB power adapter (not included). The battery level indicator lights will show charging progress.
- **Positioning:** Utilize the integrated adjustable stand to angle the light as needed. The strong tail magnet allows for attachment to metallic surfaces for hands-free operation.
6. Operating Instructions
The Warsun Y40 features a single power button to control all light modes.
- **Power On/Cycle Modes:** Press the power button once to turn on the lamp. Subsequent short presses will cycle through the 6 available light modes. These typically include:
- High COB Brightness (1000Lm)
- Low COB Brightness
- P8 Spotlight (500Lm, long-range)
- Red Light (Steady)
- Red Light (Flashing Warning)
- Red Light (SOS)
- **Red Light Mode Activation:** To directly enter the red light mode, press and hold the power button for 2 seconds. This is useful for warning signals or specific tasks like beekeeping or mosquito repellent.
- **Power Off:** Continue cycling through modes until the light turns off, or press and hold the power button for 2 seconds from any white light mode to turn it off.
- **Power Bank Function:** To use the lamp as a mobile power bank, connect your device to the Type-C port using a compatible cable. The lamp will provide a smart fast charge output.

Figure 6.1: P8 lamp bead providing long-range illumination.

Figure 6.2: Using the lamp as a mobile power bank.

Figure 6.3: Red light modes for various applications.
7. Charging
The Warsun Y40 offers two convenient charging methods:
- **Type-C Fast Charging:** Connect the lamp to a power source using a Type-C cable. The intelligent fast charging technology ensures efficient power delivery. The battery level indicator lights on the back panel will flash during charging and remain fully lit when charging is complete. A full charge takes approximately 5 hours.
- **Solar Charging:** The back of the lamp features a solar panel. Place the lamp in direct sunlight for passive charging. This method is ideal for maintaining battery levels during outdoor activities or as an emergency charging option.

Figure 7.1: Type-C charging port and battery level indicators.
8. Maintenance
- **Cleaning:** Wipe the lamp with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- **Storage:** Store the lamp in a cool, dry place when not in use. Avoid prolonged exposure to extreme temperatures.
- **Battery Care:** To prolong battery life, avoid completely draining the battery frequently. Recharge the lamp regularly, even if not in constant use.
9. Troubleshooting
- **Light not turning on:** Ensure the battery is charged. Connect the lamp to a power source using the Type-C cable and allow it to charge for at least 30 minutes before attempting to turn it on again.
- **Dim light or short endurance time:** The battery level is low. Recharge the lamp fully.
- **Charging issues:** Check if the Type-C cable is securely connected to both the lamp and the power adapter. Try a different Type-C cable or power adapter to rule out faulty accessories.
- **Red light mode not activating:** Ensure you are pressing and holding the power button for the required 2 seconds.
10. User Tips
- **Solar Panel:** The integrated solar panel on the back provides a convenient way to trickle charge the lamp during daylight hours, extending its overall usage time, especially when away from traditional power sources.
- **Power Bank:** Remember to utilize the power bank function to charge your mobile devices in emergencies, making the Y40 a valuable multi-tool for outdoor adventures or power outages.
- **Magnetic Base:** The strong tail magnet is excellent for hands-free work under a car hood, on metal shelving, or any ferrous surface.
11. Warranty and Support
The Warsun Y40 COB Inspection Lamp is covered by a manufacturer's warranty against defects in materials and workmanship. For detailed warranty information, technical support, or service inquiries, please contact your retailer or the Warsun customer service department. Please have your model number (Y40) and purchase date available when contacting support.





