Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your eufy Security 4G LTE Starlight Camera. Please read this manual thoroughly before using the product to ensure proper functionality and safety.

The eufy Security 4G LTE Starlight Camera is designed for outdoor surveillance, offering 2K HD resolution and Starlight Night Vision for clear images day and night. It operates independently using a 4G LTE connection, eliminating the need for Wi-Fi.
Product Features
- 2K HD Resolution: Captures clear and detailed video footage.
- Starlight Night Vision: Provides colorful and sharp images even in low-light conditions without a spotlight.
- 4G LTE Connectivity: Operates in locations without Wi-Fi, using a compatible 4G SIM card.
- Built-in 8GB Storage: Stores video recordings locally without monthly fees.
- Long Battery Life: Designed for extended use, with compatibility for eufy Solar Panel for continuous power.
- Weatherproof Design: IP67 rated for outdoor use.
- Smart Home Integration: Compatible with Google Assistant and Alexa.
Setup Guide
1. SIM Card Installation
The camera requires a 4G data-only SIM card for operation. It is compatible with 5G SIM cards but will only utilize 4G signals. We recommend the Prepaid AT&T 35 RTR DATA/6221A Plan for prepaid data-only SIM cards.
- Locate the SIM card slot on the camera.
- Insert the activated 4G data-only SIM card into the slot, ensuring correct orientation.
- Close the SIM card slot cover securely to maintain weatherproofing.
2. Initial Charging
Before first use, fully charge the camera's internal battery using the provided charging cable. A full charge ensures optimal performance and battery life.
3. App Download and Device Pairing
- Download the "eufy Security" app from your smartphone's app store (iOS or Android).
- Open the app and create an account or log in.
- Follow the in-app instructions to add your 4G LTE Starlight Camera. This typically involves scanning a QR code on the camera and connecting it to the app.

Use the eufy Security app to manage your camera, view live footage, and access recordings.
Operating Instructions
Live View and Recording
Access live video streams and recorded events directly through the eufy Security app. The camera automatically records motion-triggered events and stores them on its internal 8GB storage.
- To view live footage, open the eufy Security app and select your camera from the device list.
- Recorded events can be accessed from the event history section within the app.

The eufy Security app provides a centralized interface for monitoring multiple camera feeds and reviewing recorded events.
Motion Detection Zones
Customize motion detection zones within the app to focus on specific areas and reduce unwanted alerts. This helps optimize data usage and battery life.

Define specific areas for motion detection to receive alerts only when activity occurs in critical zones.
Notifications
Receive instant push notifications on your smartphone when motion is detected. You can customize notification settings within the eufy Security app.

Instant notifications keep you informed of any detected activity.
Data Usage Estimation
Actual data usage varies based on activity. As a reference, approximately 500 MB/month can be expected with 10 live views per day (10 seconds each) and 25 motion recordings per day (10 seconds each).
Maintenance
Battery Management
The camera's battery life can last up to 3 months on standby. For continuous power, especially in remote locations, the eufy Solar Panel Charger (sold separately) is highly recommended.
- Ensure the solar panel receives a few hours of direct sunlight daily for optimal charging.
- In cloudy climates, one sunny day can charge the camera for approximately three days of operation.

Pairing your camera with a eufy Solar Panel provides continuous power, reducing the need for manual recharging.
Cleaning
Periodically clean the camera lens and housing with a soft, damp cloth to ensure clear image quality and proper functioning. Avoid abrasive cleaners.
Troubleshooting
Camera Offline / No Connection
- Check SIM Card: Ensure the SIM card is correctly inserted, activated, and has an active data plan.
- Signal Strength: Verify that the camera is in an area with adequate 4G LTE signal coverage. Poor signal can lead to intermittent connectivity.
- Reboot Camera: Try restarting the camera by powering it off and on.
- App Status: Check the eufy Security app for any error messages or status indicators.
Poor Image Quality
- Clean Lens: Ensure the camera lens is clean and free from dirt, dust, or smudges.
- Lighting Conditions: While the camera has Starlight Night Vision, extreme low light or direct bright lights can affect image clarity.
- Resolution Settings: Verify that the video resolution is set to 2K HD in the app settings.

The eufy 4G Starlight Camera offers superior night vision compared to standard infrared cameras, providing clear, colorful images in low light.
Battery Drains Quickly
- Frequent Live View: Excessive use of live view will consume more battery.
- High Motion Activity: A high number of motion events and recordings will reduce battery life. Adjust motion sensitivity and detection zones.
- Solar Panel: Consider installing a compatible eufy Solar Panel for continuous charging.
Specifications
| Feature | Detail |
|---|---|
| Model Number | T8150121 |
| Video Capture Resolution | 2K |
| Connectivity Technology | Wireless (4G LTE) |
| Power Source | Battery Powered (Solar Panel Compatible) |
| Low Light Technology | Starlight |
| Field Of View | 120 Degrees |
| Internal Storage | 8GB (Local) |
| International Protection Rating | IP67 |
| Item Dimensions (L x W x H) | 4.53 x 2.56 x 2.64 inches |
| Item Weight | 14.6 ounces |
| Compatible Devices | Smartphone (via eufy Security App) |
| Control Method | Remote (via eufy Security App) |
Warranty Information
eufy Security products typically come with a limited warranty. For specific warranty terms and conditions applicable to your 4G LTE Starlight Camera, please refer to the warranty card included with your product or visit the official eufy Security website.
Support
For further assistance, technical support, or to explore other eufy Security products, please visit the official eufy Security website or contact their customer service.
Official eufy Security Store: eufy Security on Amazon







