Voltage regulator to stabilize voltage and help prevent voltage fluctuations, potentially extending the life of electrical appliances. Features an anti-surge device to help protect against current spikes and safeguard connected devices. Equipped with electronic control capacitors to help balance current and improve overall power efficiency, reducing potential electrical waste. The device is designed to operate without drawing additional current, allowing for continuous 24/7 use without increasing electrical load. Compatible with common household appliances such as air conditioners, washing machines, refrigerators, fans, televisions, water pumps, audio systems, and fluorescent lighting. Suitable for use in residential homes, small offices, shops, and small industrial settings. Simply plug into any standard wall outlet connected to the main power line to activate circuit protection and energy optimization. For optimal performance, keep the device plugged in continuously without interruption. Works within standard electrical systems where current flows; designed for use with common meter types. After installation, it may take 24 to 48 hours for the device to fully regulate the circuit across the household. Specifications: - Applicable voltage: 90V240V / 50Hz60Hz - Working temperature: -60C to 75C - Maximum load capacity: 15,000W to 18,000W - Dimensions: 11.5 x 6.5 x 4 cm - Weight: 100g - Plug type: EU/US/UK Package Includes: 1 x Power Saver Device 1 x User Manual Note: Due to differences in monitor displays, actual product color may vary slightly from images. Please allow 13 cm variation due to manual measurement. Please with any concerns before leaving negative feedback. Thank you for your understanding.