SVBONY Dew Heater Strip DN30cm 5V for Telescopes and Camera DSLR Lens Linear Temperature Control Devices Keep Them From

Features 1 100 brand new and never used2 DN30 the length is 30cm for outside diameter 10cm lens UV size is less than 72mm3 Dew heater strap is an essential accessory that protects your optical tube from excess moisture forming condensation on the corrector lens4 Cloth covered with foam insulation on outer side for maximum efficiency and performance5 Electrical interface USB Power Bank is required for 2A 6 Voltage 5V7 Maximum power 10W8 Width 50 mm9 Weight 66g 2 32ozPackage Includes 1 x DN30cm Dew Heater StripDetails Picture