Firefly Mega Glow Tritium Marker (Green)

gives a good light at night without the need for batteries or exposure to light

This is a really good beta light, perfect for a survival tin. Not as bright as a tourch, but certainly able to read a book in total darkness. Very impressed.

Much better quality than the Nite glowing keyring I had that snapped. For those that don't know these do not glow all that bright, so are not an alternative to a torch but glow bring enough to make them easily visible in a dark space. Nice and compact, glows as well as needed and not a bad price.

Well made, secure and nice and bright for a tritium light - looks great ⭐️

Fast shipping, plus seller sent little bag of sweets with order. I bought 2 beta lights / firefly trigalight one for me and one my girlfriend. I will wear on a neck chain. Seems bright enough in the dark. I will test later with Geiger counter to see if any mild radiation.

I have a few older Tritium vials on keys and needed a new one. This is brighter than those, but potentially younger (depending on how long the supplier had it). As such I cannot fairly compare them, but I'm happy with this one.

Good bright tag , attached ring a bit flimsy, expensive

It could be cheaper though, like £5 cheaper. I bought it because needing it in a hurry. But has thousands of uses. Handy, eg. for locating the bathroom light cord. Handy for tents.