ABOUT US

Self Powered Safety Products Limited, known as SP2, is a British company dedicated to the development and supply of self-illuminating markers and tactical devices for those whose activities are carried out at night. Our goal is to make night operation and navigation safer, easier and more efficient. Our radioluminescent devices do not require any charging or switching. Unlike photoluminescent and chemiluminescent devices, they will continue to glow for many years, even during prolonged periods of complete darkness. No external power supply is needed so there is no need to check and replace batteries or maintain a mains power supply. Nor is any maintenance required. Therefore, the cost of ownership for users is very competitive. Our range of products extends from simple Kit Markers through Secure Torches and Prismatic Compasses to Fire Safety Signs. Each product incorporates one or more self-luminous trigalight® light sources, enabling users to use the device quickly and easily in the dark.

Some of our Products
£13.99
Ice Blue MegaGlow Safety Marker
In Stock
£6.99
Yellow MiniGlow Marker Compact and Eye Catching
In Stock
£37.00
Fiery Red Glow in the Dark Alarm Clock
In Stock
£8.99
Green Kit Marker for Bags, Equipment and Tents
In Stock
£5.99
Yellow Bivvy Marker for Zip Visibility
In Stock
£11.99
White Super Kit Marker for Location, Item Visibility
In Stock
£12.50
Ice Blue Firefly Flint Glow Marker
In Stock
£8.99
Purple Kit Marker for Bags, Equipment and Tents
In Stock
£5.99
Purple Bivvy Marker for Zip Visibility
In Stock
£13.99
Green MegaGlow Safety Marker
In Stock
£13.99
UV Blue MegaGlow Safety Marker
In Stock
£6.99
Orange MiniGlow Marker Compact and Eye Catching
In Stock
£9.99
Red Micro Fixed Marker - Pack of 3
In Stock
£84.99
Turquoise Firefly Navigator Compass
In Stock
£24.99
Firefly Champion Spark Marker- White
In Stock
£5.99
Orange Bivvy Marker for Zip Visibility
In Stock
Our Blog
$30000 a gram. Tritium is one of Earth's most expensive substances
Doug B.
17 November 2017
Interesting Articles

$30000 a gram. Tritium is one of Earth's most expensive substances

Tritium is Expensive! Cost: $30,000 per gram.  Gaseous Tritium is also used in self-luminous fire safety signs which offer users the most advantageous life-cycle cost of any permanantly illuminated fire safety sign. Typically having a service life of 10+ years, self-luminous signs need no technical maintenance or spare parts during that time....

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How do things glow in the dark?
Doug B.
10 October 2017
Home

How do things glow in the dark?

Radioluminescence Luminescence is the emission of light by materials that are relatively cool. This is different from the light emitted from incandescent materials, such as burning charcoal, wood, paper etc., as the light in those cases results from heat. Since the emission of light is done by relatively cooler materials, luminescence is also called cold-body radiation. Gaseous Tritium's...

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