1pcs Trit Vials Tritium Self-luminous 15-Years 3x22.5mm

Don't order unless the color of the vial doesn't matter to you. I should have listened to the numerous other reviews, but like an idiot, thought, "It won't happen to me"Ordered the green, got the purple.Started the return process, everything was fine until I got the return shipping labels.... I'd be responsible for the return postage to China.So, I'm stuck with the purple. I'm not paying for postage to correct a mistake they made, a negative review is much more gratifying.BTW, the strength of the glow is pretty weak anyway.

Ordered 2 GREEN Tritium Vials.Received 2 ORANGE-RED Tritium Vials.

I ordered a green vial and received an orange one-- it is really dim.

The vial arrived much faster than the promised delivery date. It is smaller than I expected and at first I thought I had an empty package. The size is actually some form of standard. I also bought a fob to hold it. The fob came from a different supplier, but vial fits nicely in the fob. It is not very bright, and this is why it only gets 4 stars. There is no hope of a single vial giving off enough light to illuminate a keyhole. But it will make my keys easier to find in the dark.

Came faster than expected. Very bright. I did not expect this little vial to be so bright. Great buy. I use it in the Tec Isotope 360.