Feature: 1. Premium Material: Time switch is made of premium pc material, flame retardant shell is strong and not easy to deform, safe and reliable, can be used for a long time. 2. Energy Saving: The power consumption of this mechanical time switch is only 5w, energy saving and environmentally friendly, very suitable for home, kitchen, etc. 3. Multi Application: This timer switch is very suitable for automatic control of home power supply, advertising light boxes, street lights and more. 4. Easy To Use: Mechanical time control switch is exquisitely made, lightweight, easy to install, use and clean, bringing you a great using experience. 5. Convenient: You can easily check the time of use of electrical appliances, and that your use of electrical appliances is safer and more energy efficient. Specification: Item Type: Mechanical Time Switch Material: PC Product Size: Approx. 14.8 x 9.6 x 4.2cm / 5.8 x 3.8 x 1.7in Voltage: 100-240V AC Purpose: Energy Saving, Power Saving, Circuit Protection and Other Functions Ships with Matching Battery Battery Model: 1 x TB380N2457 Battery Battery Capacity: 110mAh Minimum Timing: 15 Minutes. Package List: 1 x Mechanical Time Switch3 x Screws1 x TB380N2457 Battery 1 x Instruction Manual Note: Manual measurement, please allow 0.04‑0.08in error.