✅ Product Description: Heavy dew and humidity can disrupt your stargazing sessions—especially when standard dew shields and heaters fall short. This Extra Big Dew Heater is designed specifically for 12-inch telescopes, delivering powerful and even heating to protect your optics from moisture. Perfect for large catadioptric systems such as Schmidt-Cassegrain, Maksutov-Cassegrain, and other front-aperture telescopes in the 300–310 mm range. 📌 Suitable for telescopes with an optical tube diameter of approximately 300–310 mm. ⸻ ✅ Key Features: 🔥 High Power Output – Handles even the most challenging dew conditions 🔄 Even Heating – Prevents fogging and condensation across the optical surface 🔌 Standard RCA Plug (12V) – Universally compatible with dew controllers 🧵 Durable 47-inch Cord – Soft, flexible, and cold-resistant for easy setup 🛠 Handcrafted by R-Sky – Built for serious astronomy with real-world testing ⸻ ✅ Recommended Use with a Controller: Pair this dew heater with a power controller to adjust heating levels, prevent overheating, and optimize battery life during long observation sessions.