1. Introduction
Thank you for choosing the YELKO Motion Sensor Night Light. This device is designed to provide gentle, automatic illumination in various areas of your home, enhancing safety and comfort. It features adjustable brightness, customizable delay times, and a warm white 3000K LED light source.
2. Safety Information
- For indoor use only. Do not expose to water or high humidity.
- Do not disassemble or modify the device.
- Ensure the power outlet is easily accessible for disconnection if needed.
- Keep out of reach of children.
- The device is designed to fit standard US outlets and not block the second receptacle.
3. Package Contents
- YELKO Motion Sensor Night Light (2 units)
- User Manual
4. Product Features
- 3000K Warm White LED: Provides a soft, glare-free, and sleep-friendly glow.
- PIR Motion Sensor: Detects movement within a 120° angle and up to 16 feet, activating the light automatically in low-light conditions.
- 5-Level Dimmable: Adjust brightness from 20% to 100% to suit your needs.
- Adjustable Delay Time: Set the light to stay on for 30, 90, or 180 seconds after motion ceases.
- Dusk-to-Dawn Sensor: Ensures the light only activates when the ambient light is low.
- Compact Design: Plugs into standard outlets without blocking the second receptacle.
- Durable Construction: Features a V-0 fire-resistant casing and nickel-plated brass foldable prongs.

Figure 4.1: Detailed features of the YELKO Motion Sensor Night Light.

Figure 4.2: The 3000K soft cozy glow of the night light.
5. Setup
- Unpack the YELKO Motion Sensor Night Light from its packaging.
- Locate a standard 110-220V AC power outlet in your desired location (e.g., hallway, bathroom, bedroom).
- Plug the night light directly into the outlet. Ensure it is securely seated. The compact design allows it to fit without blocking the second outlet.

Figure 5.1: Night light plugged into a standard outlet, leaving the second receptacle free.
6. Operating Instructions
The YELKO Motion Sensor Night Light features two control buttons on its front face for adjusting modes, brightness, and delay time.
6.1. Mode Selection (Left Button)
The left button controls the operating mode:
- Press once: Toggles between 'Always-On' mode and 'Auto-Sensor' mode.
- Always-On Mode: The light remains continuously on at the selected brightness level. A red indicator light may illuminate to confirm this mode.
- Auto-Sensor Mode: The light will only turn on when motion is detected in low ambient light conditions.

Figure 6.1: Motion sensor detection range and angle.
6.2. Brightness and Delay Time Adjustment (Right Button)
The right button allows you to adjust both the brightness level and the motion-activated delay time.
- Short Press: Cycles through 5 brightness levels: 20%, 40%, 60%, 80%, and 100%. Select the desired brightness for your environment.
- Long Press: Adjusts the auto-off delay time after motion ceases. The light will flash to indicate the selected delay:
- Flash once = 30 seconds delay
- Flash twice = 90 seconds delay
- Flash three times = 180 seconds delay

Figure 6.2: Brightness levels and adjustable delay settings.
Video 6.1: Demonstration of the YELKO Motion Sensor Night Light's adjustable features, including brightness and delay settings.
6.3. Usage Scenarios
The adjustable features make this night light suitable for various applications:
- Hallways: Provides guidance for nighttime navigation.
- Bedrooms: Offers a soft, inviting glow without disturbing sleep.
- Staircases: Enhances safety by illuminating steps.
- Bathrooms: Ideal for quick night trips without harsh overhead lights.
- Kitchens: Useful for late-night water runs or snacks.
- Children's Rooms: Provides comfort lighting for kids.
- Elderly Care: Helps prevent falls by lighting pathways.
- Pet-Friendly: Can provide illumination for pets moving around at night.

Figure 6.3: Examples of night light usage in different home areas.
7. Maintenance
- To clean the night light, unplug it from the outlet.
- Wipe the surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Ensure the motion sensor lens is clear of dust or obstructions for optimal performance.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | 1. Insufficient darkness. 2. Not in 'Auto-Sensor' mode. 3. No motion detected. 4. Power outage. | 1. Ensure the room is dark enough for the dusk-to-dawn sensor to activate. 2. Press the left button to switch to 'Auto-Sensor' mode. 3. Move within the detection range (up to 16 feet, 120° angle). 4. Check the power outlet. |
| Light stays on continuously. | In 'Always-On' mode. | Press the left button to switch to 'Auto-Sensor' mode. |
| Motion sensor is not responsive. | 1. Obstruction near sensor. 2. Sensor dirty. 3. Ambient light too high. | 1. Clear any objects blocking the sensor's view. 2. Gently clean the sensor lens with a soft, dry cloth. 3. Ensure the room is sufficiently dark. |
| Light is too bright/dim. | Brightness level not set to preference. | Short press the right button to cycle through the 5 brightness levels. |
| Light turns off too quickly/slowly. | Delay time not set to preference. | Long press the right button to adjust the delay time (30s, 90s, 180s). |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | YK0502Y |
| Brand | YELKO |
| Color Temperature | Warm White-3000K |
| Power Source | AC Power (Plug-in) |
| Input Voltage | 110-220V 50/60Hz |
| Rated Power | 1.5W |
| Item Weight | 1.76 ounces |
| Detection Range | Up to 16 feet |
| Detection Angle | 120 degrees |
| Item Dimensions (D x W x H) | 0.78"D x 2.67"W x 2.67"H |
| Manufacturer | Shenzhen YELKO Technology Co.,Ltd |

Figure 9.1: Product views with specification label.

Figure 9.2: Comparison of 3000K Warm White vs. 6000K Cool White light.
10. Warranty and Support
10.1. Warranty Information
This YELKO Motion Sensor Night Light comes with a 2-Year Manufacturer Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
10.2. Customer Support
For any questions, troubleshooting assistance, or warranty claims, please contact YELKO customer support through the retailer where the product was purchased. Please have your purchase receipt and product model number (YK0502Y) ready when contacting support.