Features: Brand Equipped with battery protection board: over-current protection, over-voltage protection, over-charge protection, over-discharge protection High-performance lithium battery: When the built-in battery is fully charged, it enters automatic sleep mode and switches to battery power instantly when power is lost, ensuring continuous device operation without restart Provides up to 8 hours of backup power for standard optical network terminals during power outages Regulated constant current power supply: 110V–240V wide voltage input, 12V 2A regulated output that protects connected devices Universal connector: Outer diameter 5.5mm (0.23in), inner diameter 2.1mm (0.08in), compatible with 12V outdoor surveillance cameras Package Includes: 1 x Uninterruptible Power Supply Specifications: Material: ABS Input: AC 110–240V 50/60Hz Output: DC 12V 2A Size: Approx. 8 x 14 x 4cm (3.14 x 5.51 x 1.57in) Battery Capacity: 1800mAh Note: 1. Please allow 1–2cm measurement deviation due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, actual product color may vary from images shown.