Feature: High-purity copper core wire, low resistance, good conductivity, and stable performance. Made of high-quality material, anti-abrasive, anti-corrosion, and safe to use. 3 gears adjustment: red, blue, and green indicator lights represent different gears respectively. Easy and simple to operate, just press the button. Temperature Control Switch only; other accessories shown in the picture are not included. Specifications: Item Type: Temperature Control Switch Material: Plastic Size: 34x34x7mm / 1.3x1.3x0.2in Color: Black Voltage: 3.7-12V Wire: 3 lines Indicator light: Red – high gear, medium gear 70%, low gear 35% Quantity: 1 Piece Standby Power Consumption: 3uA Working Current: Max 3A Note: No retail packaging. Transition: 1cm = 10mm = 0.39inch Please allow 0–1cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. Due to differences between monitor displays, the image may not reflect the actual color of the item. Thank you. Package Includes: 1 x Temperature Control Switch