Parameter: Rated Voltage: 120V Waterproof: Ipx67 Frequency: 60Hz Package Included: 1* Reptile Heat Pad, 1* 3M Adhesive Paper S: 6 X 8 Inches, 120V, 8W L: 8X 12 Inches, 120V, 16W Xl: 85 X 185 Inches, 120V, 24W How To Attach Double-Sided 3M Adhesive: 1 Lie Heat Pad On Flat Surface 2 Turn On The Heat Pad 3 As Pad Heats, The Pad Will Become Smoother And Flatter Which Will Make It Easier To Apply The 3M Adhesive How To Adjust The Temperature Of The Pad: Rotate The Switch Clockwise To Turn On, Then Continue Rotating Clockwise To Adjust Temperature From Low To High Then Rotate The Switch Counter Clockwise To Turn Off Helpful Hints: 1 When Securing Heat Pad To Terrarium Make Sure It Is Placed So That Reptiles Will Not Have Direct Contact With The Heat Pad 2 For Indoor Use Only 3 Placing Terrariums With An Under-Tank Heat Pad On Household Furniture May Cause The Furnitureas Finish To Discolor Tikaton Recommends Using A Terrarium Stand 4 For Use On Glass Terrariums Only Do Not Use On Wood, Plastic, Acrylic Or Any Other Type Terrarium Note: The Heating Temperature Of The Pad Will Be Affected By The Environment, Best Results Are Obtained At A Room Temperature Of About 68-86Af (2030 Ac) In Winter And Less Than 113Af (45Ac) In Summer