Blue Spotted Under Tank Heater, Terrarium Heat Pad, Size Small, For Reptiles, Amphibians, Hermit Crabs, and Small Animals - Use With Glass Terrariums - Size Small - 6 Inch x 8 Inch Under Tank Heater, Blue Spotted Terrarium Heat Pad, Size Small, For Reptiles, Amphibians, Hermit Crabs, and Small Animals - Use With Glass Terrariums - Size Small - 6 Inch x 8 Inch Focuses heat to desired location and is an energy efficient low wattage external heat source. Excellent secondary heat source Easy to install, adhere directly to glass terrariums for maximum heat transfer Size Small - 6" x 8", includes rubber standoffs for bottom mounting. 8 Watts, UL Approved Other Blue Spotted Products to Consider: clamp lamps, wire cage lamps, heat emitters, UVB lamps, mercury vapor lamps, & betta plants & betta log. Also consider Aquarium Masters airline tubing, air stones, and power filters