Can you specify the transmission of the glasses? Specifically do they remove transmission of light below 530nm? Thank you

Excellent question! They block 100% at 500nm and below , 99.2% at 510nm, 98.1% at 520, and 96% at 530nm

Do these clip-ons also flip up?

In order to keep them as lightweight as possible, we opted not to use a flip up clip. Besides, once it's nighttime and you put them on you shouldn't be peaking anyways :-)

What is the manufacturer's warranty in terms of the clip-on breaking from normal usage?

I don't believe I ever did notice a warrantee. They seem to be a pretty durable poly carbonate. They have some flex and very light. My take is that there's not much concern at all in dropping them or tossing them around. Of course if you stepped on them and crushed I would predict they may be a goner.

Does it tint the computer screen? I need to know color accuracy when working on graphics.

Yes you certainly cannot block out all blue light without distorting colors. Blue and green will be indistinguishable and whites will look amber. You will get used to the color shift surprisingly fast but they are definitely not suitable for graphic design or other color sensitive work.

Spectra479 Clip On Blue Light Blocking Eyewear

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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KSh12488

Duties & taxes included

In stock

Sold byAmazon KenyaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kenya.

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Description

👓 Upgrade Your Glasses, Upgrade Your Life

UNIVERSAL CLIP ON DESIGN - Transforms any prescription or reading glasses into powerful blue light blockers in seconds—no need for multiple pairs.
COMPLETE CARE KIT INCLUDED - Each pair comes with a durable case, microfiber pouch, cleaning cloth, and easy-start guide—everything you need to protect your vision on the go.
SLEEP BETTER PERFORM STRONGER - Reduce digital eye fatigue and improve your natural sleep cycle by cutting disruptive blue light exposure after sunset.
FEATHERLIGHT COMFORT FOR ALL DAY WEAR - At just 14.2 grams, these clip-ons stay virtually unnoticed, letting you focus without distraction or discomfort.
SHIELD YOUR EYES WITH 99 9 PRECISION - Clinically tested to block harmful blue light from 280-490nm, reducing eyestrain and headaches for peak evening screen performance.

Spectra479 Clip-on Blue Light Blocking Eyewear offers a universal, lightweight solution that blocks 99.9% of harmful blue light wavelengths (280-490nm). Designed to clip effortlessly onto any prescription or reading glasses, these durable polycarbonate lenses reduce eyestrain, headaches, and improve sleep quality for users of all ages. Each set includes a protective case, cleaning accessories, and a quick start guide, making it the essential accessory for anyone spending extended time in front of digital screens, especially during evening hours.

Specifications

ASIN	B071FPWQDX
ASIN	B0CVN1LR4G
Age Range Description	Kid
Apparel Fabric Stretch	Low Stretch
Apparel Fabric Weight Class	Lightweight
Arm Length	13.4 centimeters
Best Sellers Rank	#28,557 in Health & Household ( See Top 100 in Health & Household ) #301 in Reading Glasses
Brand	Spectra479
Bridge Width	15 millimeters
Color	Orange,amber
Customer Reviews	4.5 4.5 out of 5 stars (3,263)
Date First Available	February 14, 2024
Department	unisex-adult
Fit Type	Universal
Frame Material	Plastic
Frame Material Type	Plastic
Frame Type	Rimless
Frame Width	13.3 centimeters
Garment Size Country	United States
Included Components	Case, Clip On
Item Shape	Oval
Item Weight	14.2 g
Lens Material Type	Polycarbonate
Lens Width	6 centimeters
Manufacturer Part Number	CBB1-00-19-01
Material	Plastic, Polycarbonate
Pattern	Solid
Product Care Instructions	Hand wash with mild soap, dry with a soft cloth, store in the provided case when not in use.
Special Features	Durable, Lightweight
Style Name	Classic
Style Number	CNT1-NA-19-13
Target Audience	Kids to Adults using digital screens in the evening
UPC	602573393710
Unit Count	1 Count
size	Standard

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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KSh12488

Duties & taxes included

In stock

Sold byAmazon KenyaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kenya.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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