Welcome to our store! Feature: - The adjustable voltage range can smoothly and accurately adjust from 10V to 220V, making it suitable for appliances that require low voltage to drive the heating wire. - Dual capacitance design: It uses amperometric capacitance + metal film capacitance to absorb surges and voltage spikes, making it more efficient and safer to use. ovens, water heaters, lamps, small motors, etc. - Durable performance: The voltage regulator is made of high-quality shell, with a 1.5mm thick aluminum and stainless steel construction, ensuring safety and convenience. - Specifications: - Color: Silver - Material: Aluminum + stainless steel - Input voltage: AC 220V - Voltage regulation: AC 10-220V - Power: Max. 4000W - Efficiency: >90% - Size: Approx. 85 x 55 x 38 mm / 3.3 x 2.2 x 1.5 inches - Package weight: 127g Package list: - 1 x voltage regulator Note: 1. The loaded power cannot exceed the specified maximum power, otherwise 100% satisfied: Our customers are our top priority. If you find any product problems after receiving the item, such as damage or incorrect item quantity, please contact us immediately.