1. Introduction
Thank you for choosing the Yuucio G40-30M Outdoor LED String Lights. This product is designed to provide warm, ambient lighting for various indoor and outdoor settings. Featuring durable, shatterproof G40 plastic bulbs and an IP44 waterproof rating, these string lights are built for longevity and performance in diverse weather conditions. This manual provides essential information for safe installation, operation, and maintenance of your string lights.
2. Safety Instructions
- Always ensure the power adapter is disconnected from the main power supply before installation, maintenance, or bulb replacement.
- Do not submerge the string lights or power adapters in water. The IP44 rating protects against splashing water, not full immersion.
- Use only the provided power adapters. Using incompatible adapters may damage the product or pose a safety risk.
- Ensure all connections are secure and sealed to maintain waterproof integrity.
- Do not exceed the maximum connectable length of 19 strands or a total wattage of 480 Watts when linking multiple sets.
- Keep the string lights away from flammable materials.
- If any part of the string light or bulb is damaged, discontinue use and replace the affected component.
- This product is compatible with 80% of dimmers on the market. Ensure your dimmer is compatible before use. (Dimmer not included).
3. Package Contents
Verify that all components are present in the package:
- 1x User Manual
- 2x (25+1) Shatterproof G40 Plastic LED Bulbs (50 bulbs total + 2 spares)
- 2x 15m Outdoor String Lights with 25 Sockets each
- 2x Power Adapters
4. Setup and Installation
Follow these steps to set up your Yuucio G40-30M string lights:
- Unpack and Inspect: Carefully remove all components from the packaging. Inspect the string lights, bulbs, and adapters for any signs of damage.
- Plan Your Layout: Determine where you want to hang the string lights. The total length is 30 meters (2x15m connectable strands).
- Connect Strands (Optional): If you wish to use the full 30m length, connect the two 15m strands end-to-end. Ensure the connection is tight and secure to maintain the IP44 waterproof rating. You can connect up to 19 strands for a maximum total wattage of 480W.
- Install Bulbs: Before hanging, gently screw each G40 LED bulb into its socket. Ensure they are finger-tight but do not overtighten.
- Hang the Lights: Use the convenient cup hook design on each socket to hang the string lights. You can use guide wires, nails, or hooks (not included) to secure them.
- Connect Power: Plug the power adapter into the end of the string light. Then, plug the power adapter into a suitable outdoor-rated power outlet.

Image: Step-by-step guide showing how to remove and screw in bulbs, connect strands, and use the hook design for easy fixing.

Image: Diagram illustrating the G40 bulb dimensions (4cm x 6cm) and the overall string light configuration (30M, 50+2 bulbs, 50 sockets, 1W per bulb, 2700K warm white).
5. Operating Instructions
- Power On/Off: Once connected to a power source, the lights will illuminate. Disconnect from the power source to turn them off.
- Dimmable Feature: These string lights are dimmable. If you wish to adjust the brightness, connect them to a compatible dimmer switch (not included).
- Individual Bulb Operation: Each bulb operates independently. If one bulb fails or goes out, the remaining bulbs will continue to function normally.

Image: Visual representation of the string lights' dimmable capability, showing brightness levels at 25%, 50%, 75%, and 100% (dimmer not included).
6. Maintenance
- Cleaning: Disconnect power before cleaning. Wipe the bulbs and cable with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Bulb Replacement: If a bulb needs replacement, ensure the power is off. Unscrew the old bulb and screw in a new G40 LED bulb. The package includes spare bulbs.
- Storage: When not in use for extended periods, disconnect the lights, clean them, and store them in a cool, dry place away from direct sunlight.
7. Troubleshooting
- Lights Not Turning On:
- Check if the power adapter is securely plugged into both the string lights and the power outlet.
- Ensure the power outlet is functional by testing it with another device.
- Inspect the entire length of the string for any visible damage or loose connections.
- Some Bulbs Not Lighting Up:
- Each bulb operates independently. If a bulb is out, carefully unscrew it and replace it with a spare bulb.
- Ensure the replacement bulb is screwed in tightly.
- Flickering Lights:
- Check all bulb connections to ensure they are tight.
- If using a dimmer, ensure it is compatible and functioning correctly.
8. Specifications
| Brand | Yuucio |
| Model Number | CMC-O25XA |
| Style | G40-30M |
| Product Dimensions (L x W x H) | 27 x 16.5 x 17 cm (packaged); 30 meters (total length) |
| Item Weight | 1.32 Kilograms |
| IP Rating | IP44 |
| Number of Bulbs | 50 (+2 spare) |
| Bulb Type | LED (G40 Plastic) |
| Wattage per Bulb | 1 Watt |
| Total Power | 50 Watts (equivalent to 50W incandescent) |
| Max Connectable Watts | 480 Watts (up to 19 strands) |
| Voltage | 230 Volts (AC) |
| Light Color | Warm White (2700 Kelvin) |
| Luminous Flux | 40 lm |
| Color Rendering Index (CRI) | 80.00 |
| Material | Plastic |
| Special Features | Waterproof, Energy-saving, Shatterproof, Connectable, Dimmable |
| Usage | Indoor & Outdoor |

Image: Close-up view of the G40 LED bulbs highlighting their IP45 waterproof, sunproof, windproof, and snowproof capabilities.

Image: A visual comparison demonstrating the durability of high-quality plastic bulbs against the fragility of traditional glass bulbs, emphasizing safety and longevity.
9. Warranty and Support
Your satisfaction is our top priority. Yuucio is committed to providing high-quality products and excellent customer service. If you encounter any issues or have questions regarding your G40-30M Outdoor LED String Lights, please do not hesitate to contact us. Yuucio will endeavor to resolve your problem within 24 hours.
Please refer to your purchase documentation or the retailer's website for specific contact information for support.




