Would I be able to go free diving with this in a state park spring?

Great day Zachary, Great question,Yes you can, Factory short description;Cyalume's industrial grade 6 in. SnapLights provide 360 of illumination. They are foil wrapped for light/moisture protection, maintenance free, non-toxic, non-flammable, and waterproof.A customer in San Diego, CA stated; A must have to keep around for emergencies, also good for the kids at parties, in campers, on boats,etc.We zip tie them to our scuba dive gear when we do night dives a great safety light!Thanks for asking, RiccaPlanet

I saw a military grade version that only last for 30min. How come these lasts for hours?

There are different grades of light sticks for different uses. The 30 min you saw where rated as High Intensity, those last for approximately 30-45 minutes at the maximum output. There is also an Ultra-High Intensity version which lasts for only a few minutes. Those are rated for 5 minutes of maximum output. They either put in a catalyst to speed up the reaction in the high intensity sticks or an inhibitor in the longer time sticks. The longer the time on the stick, the less light output. I hope that helps.

I understand the use for all the colors but blue. What are these for?

Blood shows up under blue light better.

Do these have an expiration date? I'm thinking of putting them in my disaster kit.

Yes they do. The packs I bought early 2015 have the expiration date of 11/19 so they last over four years at least. They work great. Hope this helps.

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Cyalume SnapLight White Glow Sticks - 6 Inch Industrial Grade, Ultra Bright Light Sticks with 8 Hour Duration (Pack of 10)

Cyalume SnapLight White Glow Sticks - 6 Inch Industrial Grade, Ultra Bright Light Sticks with 8 Hour Duration (Pack of 10)

Product ID: 257907097

Details

Brand
Cyalume
Included components
10 Piece White
Item dimensions L x W x H
22.2 x 8.3 x
Number of pieces
10
Unit count
10 Count

⏳5-year shelf life guarantee

💡8-hour ultra bright glow

🛡️Industrial-grade durability

Description

💡 Light up your moments, no power needed!

BUILT TO ENDURE - Industrial-grade construction means these sticks survive tough conditions without fail.
READY WHEN YOU ARE - Individually foil-wrapped for a guaranteed 5-year shelf life—always fresh, always reliable.
PROUDLY MADE IN THE USA - Strict quality controls ensure every stick performs flawlessly when you need it most.
SAFE FOR ANY ENVIRONMENT - Waterproof, non-flammable, and non-toxic—perfect for confined spaces or underwater use.
UNMATCHED 8 HOUR BRIGHTNESS - Stay illuminated through every challenge with a glow that lasts all night.

Cyalume SnapLight White Glow Sticks deliver ultra-bright, industrial-grade illumination for up to 8 hours. Individually foil-wrapped with a 5-year shelf life, these waterproof, non-toxic sticks are made in the USA under strict quality standards, ensuring reliable performance in any emergency or outdoor scenario.

Specifications

ASIN	B004NBZLJW
Brand	Cyalume
Brand Name	Cyalume
Customer Reviews	4.4 out of 5 stars 878 Reviews
Included Components	10 Piece White Chemical Lightstick
Included components	10 Piece White Chemical Lightstick
Item Dimensions	22.2 x 8.3 x 7.6 centimeters
Item dimensions L x W x H	22.2 x 8.3 x 7.6 centimeters
Manufacturer	Cyalume Technologies, Inc.
Manufacturer Part Number	9-08006
Model Number	9-08006
Number of Items	10
Number of Pieces	10
Number of pieces	10
Set Name	10-Piece Survival Kit
UPC	088308365236 852845001137
Unit Count	10 Count
Unit count	10 Count

Reviews

B**B

They have a nice bright glow

Cyalume White Emergency Glow Sticks - Nice and Bright

5.06.2026

C**N

Probably bear glow stick on the market

Have pretty much always used these. They are fairly bright, last quite a long time and come in a ton of colours. Quantity for price is the only thing lacking. At only 10 glow sticks, it puts them a little on the pricey side. But you get what you pay for, and these are quality.

29.10.2021

A**B

están chidas !

Me gustaron se ven bien, no están tan caras, y es justo el color que no encontraba

27.02.2023

D**N

Will buy again. Great product you get what you pay for

I love this product and this company. I've been using their sticks for many years both overseas and at home. Absolutely no complaint. I have never had any not light up when needed even if they are extremely past the best before date. Thanks for the great product will always buy from them

2.06.2020

C**S

Baja intensidad

Excelente tiempo de entrega, resultaron de intensidad muy baja y apenas duran 6 horas He comprado en otros colores (verde, amarillo) con mejores resultados

25.11.2019

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