300mm USB Lens Warmer, Lens Dew Heater Strip, Stepless Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.75 inch (95mm) in Diameter
【Lens heating】 Made of high-quality materials with fast heat transfer and good thermal insulation. Our lens heater prevent the lens from fogging by heating the camera lens or telescope, so as not to affect the effect of the equipment. Protects the lens of your camera or telescope before freezing and fogging. Perfect for taking pictures overnight or morning in somewhere with high humidity.
【Stepless temperature regulation】This product is equipped with a stepless temperature regulation controller. By sliding the knob on the controller, you can adjust the temperature according to different needs.
【USB port design】It is very handy to use because you can connect it either to your power bank or any other power source with a USB port.
【Quick installation and removal】At the beginning of your observing session, simply wrap the heating strip around the OTA or your eyepiece. The strip fits like a glove and can be fixed in place using the adhesive strap fastener. After you are finished observing, just stow it back in the eyepiece case.
【Widely applicable】It can be adjusted and used according to the lens size, and is suitable for most telescopes, cameras, and other lenses with an outer diameter of less than 95mm (3.75 inches).