The unique distribution of the heating ink on the sides of the Heat Mat allows for a gradual decrease of the temperature towards the heat mat edge which reduces the risk of glass bottom cracking. The uniformity of temperature is guaranteed because of the wide heating bands. Reptile Systems Heat Mat, unlike other heat systems allows the creation of a cooler area for your animals because it is installed on a side or under the enclosure. Easy to install (refer to instructions on the side panel), is ultra flat and thin and is placed under tank. This allows the user to keep all electrical parts out of the tank, with the maximum safety for your animals. Safe and reliable also for the user because there are no electrical wires within the heating pad. 28 x 65cm Dimensions / 38 Watts.