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The Jolly Preset heaters are designed for small freshwater or saltwater aquariums. Their reinforced plastic body is unbreakable and ensures a long lifespan. Thanks to this design, the heater can be placed under the gravel, making it also suitable for turtle or reptile tanks.
The Jolly heater operates only when submerged. It stops heating when removed from the water or unplugged. The built-in thermal protection automatically cuts off operation when the heater is no longer submerged, preventing any overheating. In this case, the LED indicator turns off even if the device remains plugged in.
The heating capacity depends on several parameters, including the water volume, the room's ambient temperature, and whether the aquarium is open or closed.
| Feature | Value |
|---|---|
| Voltage / Frequency | 220–240 V / 50 Hz |
| Cable Length | 1.5 m |
| Plug | EU 2P |
| Preset Temperature | 25°C |
Safety: this heater is designed to operate only when fully submerged. The thermal protection automatically cuts off power out of the water.