Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Crooke's Solar Radiometer, Tall Amber Stem, Clear GlobeSolar radiometers are also known as light mills because light moves their blades as opposed to wind for windmills. They consist of an airtight bulb containing a partial vacuum. Inside the glass bulb is a fine vertical spindle with a set of vanes mounted at the top. When the glass bulb is exposed to light, the vanes are propelled around, the speed of propulsion increases with the intensity of light, providing a qualitative way of measuring
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 1533 reviews
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Product Reviews
★★★★★ 5
Nice product
Size: Large, Color: Black
Great fit and great material. Warm as well
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Good quality and fit. Lightweight sweater.
Great lightweight sweater. Quality fabric and good fit.
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Reviewed in the United States on December 29, 2025
★★★★★ 4
Boyfriend liked it, however it has a weird fit
I got this for my boyfriend as he is a fan of this brand's clothes. I got him small and I am glad I did. Although it looks fantastic on him because he is him, the sweater is strangely long and has a weird tough material to it. It is not exactly soft to the touch, and it has a weird stretch. It doesn't feel like other COOFANDY brand turtlenecks he owns, so I was surprised at how stiff the material was compared to those. The color is also a bit more orange in person.
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Reviewed in the United States on December 23, 2023
★★★★★ 5
Ribbing & AComfortable Fit
I stumbled onto this brand as the sizes & sizing were very accurate.
The ribbed feature is a blessing as it masks, hides, conceals stains & or body imperfections.
I'm a 63 year old grandpa who greets outside in the Midwest at church 50 weeks a year.
The warmth, the longer sleeve's and the high & roll up, roll down turtle neck is super cozy.
The value is, it looks more expensive than it actually was, I have already ordered another in black.
I am
5'8
298#
with a 63 inch chest 48 inch waist fits with room to spare.
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Reviewed in the United States on January 23, 2024
★★★★★ 5
Good 👍
Muy bonito igual ala foto
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Reviewed in the United States on May 12, 2026
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