Ensure a stable and safe environment for your aquatic life with this high-performance Fish Tank Heating Rod, designed with precision temperature control and durable materials for long-lasting use. Crafted from stainless steel and ABS, this heating rod features silver-plated contacts and a nickel-chromium electric heating wire for rapid and consistent heat accumulation, maintaining a constant temperature within an adjustable range of 18-34°C to meet diverse aquarium needs. Key Features: · Durable Stainless Steel Heating Rod: High strength, explosion-proof, and anti-collision design ensures safety and longevity in your aquarium setup. · Precise Temperature Control: Mechanical adjustment knob allows fine-tuning within an 18-34°C range, adapting perfectly to various aquatic environments. · Efficient Heat Distribution: Nickel-chromium heating wire promotes quick heat accumulation and stable temperature output for optimal fish tank conditions. · Safety and Waterproof Design: Double sealed head and silver-plated contacts provide waterproofing and anti-creep properties, enhancing electrical safety. · Clear Operation Indicator: Equipped with a top working indicator light and translucent top cover to clearly display the heating status at a glance. · Secure Installation: Two strong rubber suction cups ensure firm fixation inside the tank, preventing accidental falls and maintaining stable placement. · Automatic Power Off Protection: The device features automatic shutdown in case of overheating, safeguarding both your equipment and aquatic life. Specifications: · Material: Stainless Steel + ABS · Color: As shown in picture · Temperature Control Range: 18-34°C · Available Wattages and Sizes:   - 50W (19 cm / 7.5 in)   - 100W (23 cm / 9.1 in)   - 200W (28 cm / 11 in)   - 300W (32 cm / 12.6 in)   - 500W (37 cm / 14.6 in) Usage Tips: For optimal performance, install a water circulation system to maintain even temperature distribution throughout the tank. Avoid placing the heating rod in sand or substrate, which could affect temperature regulation. To determine the appropriate wattage, use the formula: Aquarium Length × Width × Water Level (cm) ÷ 1000 × 2 = Required Wattage. Package Includes: · 1 x Fish Tank Heating Rod This Fish Tank Heating Rod combines safety, durability, and precise temperature control, making it an essential accessory for maintaining a healthy aquatic environment in all types of fish tanks.