The product is a high-power 40A power take-off switch, which can turn on air conditioners, water heaters, TVs and other daily lighting needs at the same time. Note: 1. Due to manual measurement, there will be a 1-2 mm error in the size. Thanks for your understanding. 2. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object. Specifications: Color: Gold Material: Aluminum Alloy ABS Load Power: 40A-8000W Installation Hole Distance: 60mm Voltage: 85-250V Line Change Method: Firewire, Firewire Out, Zero Line Item Size: 8.6*9*4.2cm / 3.39*3.54*1.65in (L*W*H) Packing Size: 9*9*5cm / 3.54*3.54*1.97in (L*W*H) Net Weight: 115g / 4.06oz Gross Weight: 123g / 4.34oz Package List: 1 * Switch 1 * RFID Card