This is a very high quality, very sleekly designed credit card sized card light encompassed in a brushed steel case. The Eon Classic has two super bright LEDs (do not look directly at them when the light is on) that combine to produce an ultra efficient beam of light that can remain lit for up to 168 hours straight, all in the size of a credit card.
Its lithium battery lasts 5 to 10 years, so if you use your Eon Classic sparingly, it may well be the last flashlight you ever need to buy and you will never need to worry about replacing the batteries. This is exactly the same size as standard credit cards and only slightly more than a single credit card width in thickness. It is truly an excellent piece to own. Very luminous and very powerful. Produced from the inventor of the very first such item and reintroduced by Iain Sinclair.