Jolly plastic heaters are designed for small freshwater, marine, and turtle tanks. Their plastic casing makes them durable and extremely safe. These heaters can be placed under gravel, making them a good choice for turtle or reptile tanks. The Jolly device always operates when submerged in water and only stops working when unplugged. The built-in thermal protection feature activates when the heater is not underwater, preventing overheating (the LED indicator remains off even if the Jolly device is plugged in). Performance may vary according to the following factors: - Amount of water - Room temperature - Open or closed tank Main Features - Reinforced plastic casing to be completely waterproof and unbreakable - Accurate electronic thermometer preset to 25°C - 77°F - Red light for on and off - Holder with strong suction cups - Automatic shut-off when the desired temperature is reached - 220-240V/50Hz - 12 watts - 1.5-meter cable