Fangrui Product Details Countdown Timer Switch This Timer Switch Can Solve These Problems! With 1, 2, 4, 6, 8, 10 Hours Countdown Timer Function, You Can Set The Certain Time To Turn Off The Household Devices, Which Will Save Energy And Cost. Own It, Worry About Your Phone Will Overcharge. Besides, When You Are Not At Home, You Can Schedule The Light To Turn Off, So As To Keep Potential Thieves Away, Helping Improve Your Home Security. It Will Definitely Make Your Life Much Easier And Safer! Avoid Overcharging Automatically Turn Off The Electronic Device, Effectively Protect It From Overcharging Anti-theft Random Function Improve Your Home Security By Timing Function, Giving The Appearance That Someone Is At Home Even While Youre Away 6 Setting Choices 6 Different Countdown Timer Settings Can Be Freely Set Up, Meet Your Different Needs Easy To Operate All You Need To Do Is Plug It Into A Power Outlet Then Choose The Setting You Desire Widely Used Application For Devices Like Home Light, Fan, Air-condition, Humid