Specifications:Material: PETColor: BlackVoltage: 220VPower: 5/12/38/60W5W Size: 14x15cm / 5.51×5.91 (Fit for 20cm fish tank)12W Size: 15x28cm / 5.91×11.02 (Fit for 30cm fish tank)38W Size: 28x42cm / 11.02×16.54 (Fit for 45cm fish tank)60W Size: 28x65cm/11.02×25.59(Fit fr 90 cm fisch tank)Features:- Frequency conversion induction heating, high thermal efficiency.- The water level of turtle tank should not exceed 5cm, otherwise the heating will be weak. Heating, open turtle tank cooling faster, as appropriate cover the cylinder head reheating.- The heating pad is suitable for feeding box/box of various materials. Place the heating pad at the bottom to form floor heating.- In case of short circuit, automatic power off protection line.Warm Reminder:1. Do not bend or cut.2. Do not pierce or staple.3. Do not immerse in water.Package Included:1 X Heat MatNotice:1. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering.2. Please understand that colors may exist chromatic aberration as the different placement of pictures.