Features: Smart thermostatic pond deicer with 500W heating design prevents complete freezing using automatic 0°C activation and 55°C ± 5°C shut-off, ensuring safe oxygen exchange through ice via efficient thermal cycling. Cast aluminum base houses stainless steel heating tube and EVA float, delivering 120V/3.63A power with ≥100MΩ insulation for year-round water safety in ponds and lakes. Ideal for fishkeepers and pond owners seeking reliable winter protection for ponds, fish, and aquatic systems vulnerable to ice-over conditions. Deploys easily in outdoor water features, backyard ponds, or aquaculture setups to maintain vital air holes while reducing harmful gas buildup under frozen surfaces. Red indicator light confirms operation; PVC-shielded components and 3-meter cord ensure continuous performance to help preserve water quality and prevent low-oxygen conditions in cold climates. Specifications: Component: Aluminum die-cast housing Product Size: Approx. 18.5 x 18.5 x 6.8 cm (7.28 x 7.28 x 2.67 in), cord length 3 m (118.11 in) Power: 500W Package Includes: 1 x Pond Deicer Note: Please allow up to 1 cm measurement tolerance due to manual measurement. Color appearance may vary slightly depending on monitor settings.