Description
🌌 Dew Heater Strap – Protect Your Optics from Humidity
The dew heater strap is an essential accessory for astrophotography in humid conditions. It features high-quality heating elements finished with double-sided Velcro, a stretchable strap for a secure fit on your telescope hood, and a flexible silicone cable ending with a full metal RCA connector compatible with most dew heater controllers, including AstroLink devices.
⚡ Power Consumption (12V / 5V USB models):
- 50–60 mm: 6 W / 5 W
- 70–90 mm: 8 W
- 100–130 mm: 11 W
- 140–150 mm: 14 W
- 8″: 18 W
- 9.25″–10″: 22 W
📏 Details:
- Standard cable length: 1.5 m
- Stretchable strap ensures a firm fit
- Custom lengths and sizes available upon request
⏱️ Availability: For out-of-stock items, estimated delivery is 5 working days.
⚡ Power Regulation – What You Should Know
🔧 Power regulation for heating straps is often overestimated in its importance. When a heating strap is properly selected for the optic and correctly installed, it can safely operate at full power continuously without causing any negative effects.
📡 In practice, around 99% of heating strap power control systems use PWM (Pulse Width Modulation). While effective for regulation, PWM inherently generates EMI (electromagnetic interference), which may lead to image artifacts 🖼️ or other unwanted side effects in sensitive astrophotography setups.
✅ For this reason, unless there is a specific need to reduce power consumption 🔋 (for example, when operating from a battery), we recommend using the heating straps at their default, full power level to ensure stable, interference-free operation and reliable dew prevention ❄️🚫.
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