- Universal lens warmer. Lens Warmer prevents telescope camera lens from fogging dew by warming up the lens on a camera or telescope. It also warming up water bottle and use as a knee strap;
- USB port design, 1.8m usb cable length. You can connect it your power bank or any other power source with a USB port. 1.9A to 2.0A input current, 5V input voltage;
- Temperature regulator adjustable. Strong medium weak heating modes that you can adjust the temperature according to your requirements;
- Design for telescope. 50mm bandwidth does not affect the focusing and no dark angle of the field of view, fit lens outer diameter below 127mm;
- Heating fast and evenly. Built in aluminum make heating evenly. Alloy fiber heating wire provides super fast. Three layer insulation material to reduce heat dissipation.
In Stock
Work well
It works well, it already heats to the minimum power. well-made band.
Versatile reliable product
Used this for over a year with my small refractor and dslr lenses. Perfect with a power bank for travelling. Would be a five star, but I dropped it to four, as the power indicator USB switch times out after 1 hour. Would be useful to know this. Easy fix to just attach the dew heater directly to the power bank/camera usb without the switch.
don't let the cold spoil your view!
When these cold nights bite and that crisp clear sky is upon us you van guarantee moisture will form all over just don't let it form on your lens or mirrors as standing with a hairdryer at 2am in the morning will provoke your neighbours into world war 3.
For the price I didn't think these dew bands would be upto it since they run on 5v usb ( I have the largest 480mm ) but on full power it pulls 1.8 amps and warms up quick which i found me holding to warm my hands at one point.
Well made with a branded usb cord and a separate power control lead, a tip for svbony which is a positive criticism would be make longer versions for larger telescopes ( even if it has to be a dual usb as I cannot see anything over 50mm running on 5v ) and consider red leds on the controller to save our night vision .....
I would recommend these dew bands to anyone who wants to stargaze into the early hours or on the coldest of nights when dew can form and mess up your viewing .... well done svbony yet again you have impressed me .... thank you for reading my review (scivideos) barry
| Model | W9132A | W9132B | W9132C |
| Total Length | 320mm | 400mm | 480mm |
| Heater Length | 240mm | 320mm | 400mm |
| Interface Type | USB Type-A | USB Type-A | USB Type-A |
| Input Voltage | DV 5V | DV 5V | DV 5V |
| Input Current | 1.45A~1.55A | 1.8A~1.95A | 1.9A~2.2A |
| Power | 7.25W - 7.75W | 9W – 9.25W | 9.5W-9.75W |
| Temperature Adjustable | Yes | Yes | Yes |
| Power Cable Length | 1.8m | 1.8m | 1.8m |
| Strip Material | Imitation OK cloth + SBR + Black-T +Aluminum Film+ PU | ||
| Power cord material | Nylon | Nylon | Nylon |
| Fit for OTA | SV503 70ED |
SV48P 90, SV503 80ED, SV550 80APO
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- 1. Designed for astronomy telescopes and compatible with DSLR camera lens, protecting optical devices like telescope and camera from fogging or freezing;
- 2. It can be used for heating baby bottles or feeding bottles indoors or outdoors;
- 3. 3 gear regulator with strong-medium-weak heating modes, you can adjust the temperature in different situations;
- 4. 50mm narrow width design, when you use it, it will not block your field of view and will not have dark corners in the field;
- 5. Imitating OK cloth, SBR and Black-T three-layer keep warm material fits the lens better, when you use it, it can heat fast and even;
- 6. Alloy fiber heating wire provides super fast and continuous warming, silicone insulation process can prevent internal short circuit, it is very safe.
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