✅ Product Description: Don't let heavy dew ruin your observations. This extra-powerful dew heater is designed for telescopes with 7–8 inch optical tubes, especially in conditions where standard heaters fail to keep up. It provides consistent, even heating to prevent fogging on large corrector plates or meniscus lenses. Ideal for Schmidt-Cassegrain and Maksutov-Cassegrain designs, as well as other telescopes of similar size and construction. 📌 Suitable for front-aperture optics from approximately 180mm to 203mm in diameter. ⸻ ✅ Key Features: 🔥 High-Power Output: Effective against heavy dew and high humidity 🔄 Even Heat Distribution: No hot spots, no overheating 🔌 Standard RCA Plug (12V): Compatible with most dew controllers 🧵 Soft, flexible cable: 47 inches (120 cm) for easy routing 🛠 Hand-assembled by R-Sky: Durable, tested in real observing conditions ⸻ ✅ Use with a Controller (Recommended): For best performance and battery efficiency, pair with a dew heater controller to regulate power and prevent overheating during long observing sessions.