Dew heater for 450 mm diameter telescopes (PrimaLuceLab, SKU: PLLFAS450 ) is a wide heating band designed for large reflector, Schmidt-Cassegrain and RC telescopes with a tube diameter of about 450 mm . Placed in the front of the tube, it gently heats the air around the optics, effectively preventing moisture condensation on mirrors and lenses even on very humid nights.
• nominal diameter 450 mm - flexible hook and loop section covers tubes 450 - 460 mm
• evenly distributed heating cable ensures uniform, gentle heating without "hot spots"
• 12V DC power supply (standard 5.5 × 2.1 mm plug, plus in the center) - fully compatible with EAGLE, ECCO and most dew-heater controllers
• soft, wide Velcro strap ensures quick installation and even pressure on the tube
• 2 m power cable makes it easy to run cables along the mounting
• lightweight but durable construction - does not significantly burden the counterweight system
• PLLFAS450 heating band with 12 V DC cable
• tube diameter range: 450 – 460 mm
• supply voltage: 12 V DC
• connector: 5.5 × 2.1 mm plug (plus in the middle)
• strap length (unfolded): 160 cm
• strap width: 50 mm
• cable length: 2 m
• weight: 210 g
• manufacturer: PrimaLuceLab – Italy
The PLLFAS450 headband is indispensable in large observatory telescopes or 16"-18" mobile Newtonians, where even a small amount of dew can reduce contrast and make focusing difficult. It provides stable optical conditions, guaranteeing clear images throughout the entire night of observation.

