Key benefits Reliable temperature control: Keeps water at a steady temperature to protect fish, turtles and other aquatic life from stress caused by temperature swings. Safer low-voltage operation: Runs on a 5 V low-voltage power supply to reduce electrical risk in small or desktop aquariums. Extended lifetime and protection: Built-in dry-burn protection prevents damage to the heating rod if the unit is exposed to air, increasing lifespan and reducing maintenance. Durable construction: Wear-resistant aluminum-alloy housing shields internal components and supports long-term, stable performance. What it does Maintains a constant, set temperature range using advanced temperature-control technology so your aquarium environment stays stable and healthy. Glass heating element delivers even, efficient heat transfer for small tanks and enclosed habitats. Simple, precise operation makes it easy to adjust and monitor water temperature without complex setup. Compatibility and materials Designed for use in small aquariums, turtle aquariums and office/desktop aquariums. Glass heater element with an aluminum-alloy exterior for strength, corrosion resistance and protection of internal parts. Powered by a 5 V low-voltage supply for safer, low-power operation. Practical use scenarios Office aquarium: Keeps a small desktop tank at a stable temperature so tropical fish remain active and healthy during office hours. Turtle enclosure: Provides constant water warmth for aquatic turtles, helping digestion and activity without risking overheating. Quarantine or small home tank: Ideal for maintaining a controlled temperature during acclimation, medication periods or when caring for small groups of fish. Why customers choose this heater Minimizes temperature-related health problems by maintaining steady water conditions. Low-voltage design and dry-burn protection reduce safety concerns and repair costs. Robust aluminum-alloy housing and quality glass element deliver dependable performance in compact setups. Specifications summary Type: Glass aquarium heater Power supply: 5 V low-voltage Housing: Wear-resistant aluminum alloy Key features: Precise temperature control, dry-burn protection, durable construction Simple to install, straightforward to operate, and built for small aquariums where reliable, safe heating makes a noticeable difference in aquatic health and longevity.