Thermostatic Control & Anti-Freezing: The 30W heated water bowl automatically stops heating when water reaches 131°F (55°C) and resumes when the temperature drops, preventing freezing even in temperatures as low as -4°F, ensuring a reliable source of drinking water for dogs and other animals outdoors. Larger Capacity: With a 0.84-gallon (3.2 L) capacity, this bowl meets higher hydration demands and is suitable for use with stray dogs, stray cats, chickens, ducks, rabbits, squirrels, and other animals. This makes it an ideal solution for providing continuous water access in outdoor settings. Interference-Free Design: The heated water bowl does not include an indicator light, which may disturb small animals. The absence of lights allows animals to approach the water source more naturally and comfortably. The lack of an on/off switch prevents accidental activation and enhances overall safety. Safe and Durable: Constructed from high-quality, eco-friendly plastic, this outdoor pet water heating bowl is non-toxic and safe for animals. It is designed to withstand outdoor conditions without releasing harmful substances.