---
product_id: 358546968
title: "Lens Warmer, USB Dew Heater Strip for Telescope Camera Lens with 3-Gear Temperature Controller, Anti-Fog Condensation Prevention for Astrophotography, DSLR, Finder Scope, Eyepieces up to 4.3 Inch"
brand: "losharp"
price: "₨611"
currency: SCR
in_stock: true
category: "Losharp"
url: https://www.desertcart.sc/products/358546968-lens-warmer-usb-dew-heater-strip-for-telescope-camera-lens
store_origin: SC
region: Seychelles
---

# 5-second rapid startup USB-powered universal compatibility 3 adjustable heat modes Lens Warmer, USB Dew Heater Strip for Telescope Camera Lens with 3-Gear Temperature Controller, Anti-Fog Condensation Prevention for Astrophotography, DSLR, Finder Scope, Eyepieces up to 4.3 Inch

**Brand:** losharp
**Price:** ₨611
**Availability:** ✅ In Stock

## Summary

> 🌙 Stay sharp, stay clear — never miss a shot in the chill!

## Quick Answers

- **What is this?** Lens Warmer, USB Dew Heater Strip for Telescope Camera Lens with 3-Gear Temperature Controller, Anti-Fog Condensation Prevention for Astrophotography, DSLR, Finder Scope, Eyepieces up to 4.3 Inch by losharp
- **How much does it cost?** ₨611 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/358546968-lens-warmer-usb-dew-heater-strip-for-telescope-camera-lens)

## Best For

- losharp enthusiasts

## Why This Product

- Trusted losharp brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Activation:** Heats up in just 5 seconds, so you never miss a moment due to fog or dew.
- • **Portable USB Power:** Plug into any USB power source—power banks, laptops, or adapters—for ultimate on-the-go convenience.
- • **All-Weather Night Vision:** Keeps your lenses crystal clear and operational in cold, damp, or foggy conditions for uninterrupted stargazing or photography.
- • **Customizable Heat Control:** Choose from 3 precise temperature settings to match your environment and gear needs.
- • **Universal Fit & Flexibility:** Adjustable diameter and quick-release design fit most telescopes, cameras, and finder scopes effortlessly.

## Overview

The LOSHARP Lens Warmer is a lightweight, USB-powered dew heater designed to prevent fogging and freezing on telescope and camera lenses. Featuring 3 adjustable heat settings and a rapid 5-second startup, it ensures optimal lens clarity in cold or humid conditions. Its flexible, adjustable design fits most optical devices, making it an essential upgrade for night-time photography and astronomy enthusiasts.

## Description

desertcart.com : Lens Warmer, USB Dew Heater Strip for Telescope Camera Lens with 3-Gear Temperature Controller, Anti-Fog Condensation Prevention for Astrophotography, DSLR, Finder Scope, Eyepieces up to 4.3 Inch : Electronics

## Features

- 【Stop Dew Before It Ruins Your Shot】 This dew heater strip keeps your lens above the dew point, preventing fog & condensation on cold or humid nights — a must-have for astrophotography, nightscape and wildlife shooting when dew would otherwise blur every frame.
- 【3-Gear Temperature Control, 5-Second Heat-Up】 Strong / Medium / Weak modes let you match the heat to the night: warms up in 5 seconds, peaks at 122℉ (50℃) and averages 86℉ (30℃) — enough to keep glass clear without heating air currents or draining your battery. A precise temperature regulator built for serious lens warmer users.requirements
- 【USB Powered, Use It Anywhere】 Runs on any 5V/1-2A USB source — power bank, car charger, laptop or portable station. The 59-inch cable easily reaches your mount or tripod; no 12V dew controller or dedicated battery needed, which makes field setups lighter and faster.
- 【One Strap, Fits Most Optics】 The adjustable 16.5" × 1.8" heating band wraps and fastens securely on telescope objective lenses, finder scopes, guide scopes, eyepieces and DSLR camera lens barrels up to 4.3 inch (110mm) in diameter — one lens heater for your whole kit.
- 【Safe, Even Heating You Can Trust】 Composite heating fiber delivers uniform warmth with no hot spots that could stress your optics; the outer layer stays comfortable to touch. Package includes 1 × lens dew heater strip with controller. Note: for lens & optical equipment use only; keep away from children.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09CYPMB3X |
| Best Sellers Rank | #28 in Telescope Dew Caps |
| Brand | LOSHARP |
| Color | Red-Upgrade |
| Compatible Devices | Telescope, Finder Scope, Digital Camera |
| Customer Reviews | 4.1 4.1 out of 5 stars (88) |
| Folded Size | 42cm (l) x 4.5cm (w) x 0.6cm (h) |
| Item Dimensions D x W x H | 18"D x 1.8"W x 0.4"H |
| Item Weight | 60 g |
| Manufacturer | LOEK |
| Manufacturer Part Number | LK-20210818 |
| Maximum Weight Recommendation | 60 g |
| Model Name | LK-20210818 |
| Model Number | LK-20210818 |
| Screen Size | 42 centimeters |
| UPC | 747045205310 |
| Warranty Description | 2 year |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** LOSHARP
- **Color:** Red-Upgrade
- **Compatible Devices:** Telescope, Finder Scope, Digital Camera
- **Folded Size:** 42cm (l) x 4.5cm (w) x 0.6cm (h)
- **Item Weight:** 60 g
- **Product Dimensions:** 18"D x 1.8"W x 0.4"H
- **UPC:** 747045205310

## Images

![Lens Warmer, USB Dew Heater Strip for Telescope Camera Lens with 3-Gear Temperature Controller, Anti-Fog Condensation Prevention for Astrophotography, DSLR, Finder Scope, Eyepieces up to 4.3 Inch - Image 1](https://m.media-amazon.com/images/I/71k6vB1EEAL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does the loek lens warmer run on batteries or only in usb?**
A: It has fixed USB cable...so only way to power it is with usb ... You can use power bank though

**Q: What size voltage power bank do you need?**
A: Whatever the voltage is on a USB battery, I believe about 5 V

**Q: Does this dew heater work with a Nikon 55-200mm kit lens? Sorry if this is a dumb question**
A: This lens warmer works with any size lens that the wrap can fit around. I use it for a 61 mm telescope, and there’s plenty of spare wrap to accommodate a larger lens. I had a 55 to 200 and it was similar diameter to my telescope  It is also effective to stave off, frost and condensation as long as use the wrap right along the plane of the lens area. I keep the setting also on high during the coldest nights of winter to discourage condensation.

**Q: What is the device's power consumption?  How long will it stay warm with a 10,000 mAhr power bank?**
A: I plug mine into a 33,800 mA hour battery and I believe it will last most all night. So I imagine 10,000 mA hours will last at least 3 to 4 hours if not more. If the setting is on low it would last longer; there are three settings, low, medium, high.

## Frequently Bought Together

- Lens Warmer,LOSHARP Dew Heater for Telescope Lens Heating defogging and dehumidification, 3 Gear Regulator Temperature 　for Telescope Camera Upgrade Version/with Control Switch
- Lens Warmer with Cold Flexible Cable Down to -25℃, 350mm Dew Heater Strip Prevents Lens from Dew, Fog and Condensation for Astrophotography, Lens Heater Compatible w/ Telescope and Camera in 4.26"
- USB Lens Warmer, Lens Dew Heater Strip with Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.15 inch (80mm) in Diameter

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-10-15*