Dew heater for 50 mm diameter telescopes (PrimaLuceLab, SKU: PLLFAS50 ) is an ultra-light heating band that protects the lenses of small refractors, finder scopes, planetary cameras or guide scopes from dew. The gentle heat generated by the heating band keeps the optics above the dew point, so you can observe or record images uninterrupted all night long.

Key Features of the 50mm Heating Band

• nominal diameter 50 mm - elastic Velcro strap covers tubes 40 - 60 mm
• even heating - no local overheating, safe for delicate lenses
• 12V DC power supply (5.5 × 2.1 mm plug) - fully compatible with EAGLE/ECCO controllers and most dew-heater controllers
• low power consumption - approx. 2 W (≈ 0.17 A) saves energy from field batteries
• soft Velcro strap - quick assembly and even pressure to the tube
• 1.5 m power cable - easy cabling during assembly

Set components

• PLLFAS50 heating band with 12 V DC cable

Technical parameters

• fits diameters: 40 – 60 mm
• supply voltage: 12 V DC
• power consumption: ~2 W (≈ 0.17 A)
• heating length: 18 cm
• total length of the band (with fastening): 33 cm
• strap width: 25 mm
• cable length: 2 m
• connector: 5.5 × 2.1 mm plug (plus in the middle)
• weight: 30 g
• manufacturer: PrimaLuceLab – Italy

When every gram of gear counts, the PLLFAS50 provides effective moisture protection for the smallest instruments without burdening the power supply. Ideal for mobile planetary and guider setups.