Features: Intelligent fish tank dedicated heating rod, equipped with 4 set of 3.5mm diameter chromium alloy heating tubes for high efficiency and durability. 50W Large power, uniform heat, allowing warmth to last without waiting, and long time heat storage. Intelligent digital display, real-time temperature display, build-in temperature control system, precise temperature control. Build in anti dry burn design, with multiple protections such as overheating and automatic power-off. High strength engineering material, full of durability, high-end gray gives a matte texture, small size and exquisited. Specifications: Material: PC+ABS+Metal Size: approx. 228.5x35.4mm/9x1.39inch Power: 50W Waterproof: IP68 Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 1 Piece Intelligent Aquarium Heater Rod