• Prevents dew, frost and condensation from forming on telescope optics and camera lenses
• Extra-long 400mm heating strip designed for larger optical tubes and telephoto camera lenses
• Compatible with refractor telescopes, APOs, guide scopes, finder scopes and DSLR/mirrorless lenses
• Powered by any standard 5V USB power bank, USB adapter or portable power source
• Built-in 3-level temperature controller with High, Medium and Low heating modes
• Efficient alloy fiber heating element delivers fast, stable and uniform warming
• Integrated aluminum heat distribution layer improves thermal efficiency
• Wide 50mm heating band provides excellent coverage without obstructing the optical path
• Premium insulated construction minimizes heat loss while maximizing performance
• Lightweight, flexible design wraps securely around your optics for quick installation

The SVBONY SV172 400mm Dew Heater Strip is designed to keep larger telescope optical tubes, camera lenses, and imaging equipment free from dew and frost during long observing and astrophotography sessions.

As temperatures drop, moisture can quickly form on exposed optics, reducing image quality and prematurely ending an otherwise perfect night under the stars. The SV172 gently warms your telescope or camera lens just enough to prevent condensation without affecting optical performance.

Powered by a convenient 5V USB power source, the heater strip features an integrated 3-level temperature controller, allowing you to select the ideal heating level based on ambient conditions. Its premium multi-layer insulated construction, alloy fiber heating element, and aluminum heat distribution layer provide rapid, uniform heating while maintaining excellent energy efficiency.

Ideal for larger refractors, APO telescopes, guide scopes, camera telephoto lenses, and smart telescopes, the SV172 ensures your optics remain crystal clear from dusk until dawn.

What's Included

• SVBONY SV172 400mm Dew Heater Strip
• Integrated USB Temperature Controller
• User Manual

Ideal For

• Large refractor telescopes
• Apochromatic (APO) telescopes
• Smart telescopes
• Guide scopes
• Finder scopes
• DSLR & Mirrorless telephoto lenses
• Astrophotography systems
• Large binocular objectives

Packaging & Shipping Information

• Supplied in original SVBONY retail packaging
• Securely packed to prevent transit damage
• Quality checked before dispatch
• Ships across India

Note: A 5V USB power source (USB power bank or USB adapter) is required for operation and is sold separately.