1、Quickly remove the fogging of camera lens or telescope in low temperature and high humidity environment 2、Possess fast heat transfer, good heat preservation effect, through lens heating to prevent lens fogging 3、The defogging belt is fixed by hook and loop fastener, stepping can make the defogging belt fit your lens, and convenient for you to quickly disassemble and adjust the length you need 4、The low‑temperature wire design is used, which can withstand temperatures as low as minus 40 degrees Celsius. Will not freeze hard after long‑term use in a high‑cold environment and still maintain the flexibility of the wire 5、All‑in‑one design, adopt external USB power supply, convenient storage, avoid loss, and convenient for outdoor use Item Type: Lens Heating Belt Material: Composite fiber heating wire + neoprene glued material Model: KR 0525 Room Temperature Resistance: 4Ω Surface Temperature: 45℃ Power: 6.5W Main Purpose: Defogging and defrosting High-Level Temperature: 55-65℃ Mid-Level Temperature: 45-55℃ Low-Level Temperature: 35-45℃ How to Use: Insert the USB cable into the power supply, press the switch to heat the heating belt, and press the switch continuously to adjust the level 1 x Lens Heating Belt