Bird Bath Heater For Outdoors In Winter - 10 W Birdbath Deicer With Thermostatic Control And 4.3 Ft Long Power Cord, Energy Saving For Garden Yard Patio Features: Color: Black Material: Plastic Product size: as the picture shows Package size: 14x6x4cm/5.51x2.36x1.57in Net weight: 55g/0.12lb Gross weight: 81g/0.18lb Power: 10W Voltage: 5V Product THERMOSTATIC DESIGN: The birdbath heater is safe to use with its built-in 10w, thermostat with low power. It runs when necessary to save energy and effectively prevents water from freezing so that birds can enjoy playing with water in winter. SAFE VOLTAGE 5V/2A USB POWER SAFE VOLTAGE 5V/2A USB POWER SUPPLY This 5V/2A USB power supply is very safe. You are TOTALLY away from the worry of electric shock to your bird! Use a 5V/2A power adapter, or a 5V/2A power bank to supply power to the heater. ACCURATE TEMPERATURE Thanks to the intelligent inverter technology, with the in-built chips this thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled heaters. 26 /78F Constant Temperature - Small submersible aquarium heater constant temperature to 26 /78F, keep the water temperature constant. Easy use submerge the birdbath deicer in water and connect it to the power supply with the 4.3ft extension power cord. Maintaining a constant temperature so that birds can drink fresh warm water and play happily. WIDELY APPLICABLE: Our bath heater can be used for different kinds of birdbaths, such as metal, plastic, stone or glass birdbaths containers, waterproof style will not melt plastic birdbaths. Note: The speed of heating up is concern to the capacity of the water, 1.5-3L of water is faster heating up, please add the right amount of water. Package Content: 1x small fish tank heating rod