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, 12V2A regulated output that protects connected devices Universal interface: outer diameter 5.5mm, inner diameter 2.1mm, 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 4 cm (3.14 x 5.51 x 1.57 inches) Battery Capacity: 1800mAh Note: 1. Please allow 1-2 cm error due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item.