Voltage regulator to stabilize voltage and prevent voltage fluctuations. Features surge protection to safeguard appliances from current spikes. Electronic control capacitors help balance current flow and improve power efficiency. The device consumes no power during operation and is designed for continuous 24/7 use without increasing electricity consumption. Compatible with air conditioners, washing machines, refrigerators, fans, televisions, water pumps, audio equipment, fluorescent lights, and other household and commercial appliances. Suitable for residential homes, offices, shops, and small industrial facilities. Simply plug into any standard wall outlet on the main circuit to begin operation. Once installed, leave powered on continuously for optimal performance. Works with standard electricity meters; no special meter required. After installation, full circuit optimization may take 24–48 hours. Specifications: Input Voltage Range: 90V–240V, 50Hz–60Hz Operating Temperature: –60°C to +75°C Maximum Load Capacity: 15,000W or 18,000W Dimensions: 11.5 × 6.5 × 4 cm Weight: 100 g Models Available: EU, US, UK Package Includes: 1 × Voltage Regulator Unit 1 × User Manual Notes: Color appearance may vary slightly due to monitor settings. Allow for a 1–3 cm measurement tolerance due to manual measurement. Please before leaving negative feedback if you encounter any issues.