Specification: Adjustable temperature range from 20°C to 34°C. Easy installation and simple operation. High-temperature-resistant, explosion-proof quartz glass tube for enhanced safety. Built-in sensitive temperature controller and overtemperature protection. High-resistance heating wire ensures uniform and stable heating with extended service life. Excellent heat resistance and electrical insulation. Efficient heat conduction. Includes sturdy support hook and anchor chuck for stable and reliable performance. Dual waterproof protection with fully submersible design for precise temperature maintenance. Maximum submersion depth: 120 cm. Suitable for freshwater and saltwater use. Item Name: Heating Rod Material: Plastic and Glass Frequency: 50 Hz – 60 Hz Power Options: 25 W, 50 W, 100 W, 200 W, 300 W Plug Options: US Plug, EU Plug, UK Plug Features: Durable, Adjustable, Easy to Use, Heat Resistant Dimensions: - 25 W / 50 W: Rod length ≈ 20.5 cm (8.07 in) - 100 W: Rod length ≈ 26.5 cm (10.43 in) - 200 W / 300 W: Rod length ≈ 30.5 cm (12 in) - Cord length ≈ 80 cm (31.5 in) Note: Color may vary slightly due to monitor settings. Slight dimensional variations may occur due to manual measurement. Package Includes: - 1 x Heating Rod - 2 x Mounting Buckles