The Cyba-lite Micro LED is a little super-bright torch intended to hang off a key-ring. It's an attractive flat, oval-shape in translucent plastic, about an inch long, and comes in a range of colours. There's a rubbery-feeling, big, flat, round grey silicone-plastic button on either side, so you can switch it on by squeezing it no matter which way up it is. The same button(s) work(s) to turn it off again, and there are two narrow, grooved similarly rubbery-feeling strips down either side of the light to provide 'grip'. A short chain attaches the light part of the key-ring to a push-open clasp style fob that you use to connect it to your keys. The weight of the key-ring pretty much negligible, and the rounded shape means it fits easily onto your bunch of keys without seeming too obstructive.

I've carried one of these LED lights about for years, since I used to have a job that involved a certain amount of blundering about in the dark. I have to say that the light from the single-bulb LED on this torch is surprisingly powerful - so much so that even when I was using it while crossing uneven terrain (fields, etc.) at night I was able to use it to find my way: held at about waist or even chest height the light it casts down to ground level is enough to see by. The lights aren't designed to be waterproof, but are in practice 'splashproof' - I've dropped mine in the sink before, and with quick fishing-out and immediate drying, it's been fine.

The great advantage of this type of light is, of course that the bulb is of the LED-type: since LEDs draw less power in general than old-style radiant bulbs, these key-ring lights last for ages without needing the batteries to be replaced. In fact, my first one lasted a couple of years and the casing wore out before the batteries did, so I just bought a whole new replacement. They do tend to get scuffed by the keys they're kept with, if you keep yours on a key-ring. In the independent camping shop where I generally purcahse these mini-lights, they currently cost around the £10 mark, which is slightly more than they were two years ago when I bought my most recent one.

Online however, from amazon.co.uk for example, the RRP is substantially less - at slightly under £7, and they actually sell for less than a fiver, which is a bit more like it.

I find it surprisingly useful to have a light on my keys, eg. when I'm at the cinema, for finding my way once the lights are off, and on more than one occasion in the past, I've found myself underground while visiting a show-cave on a day trip - another situation in which it's handy to find you have a portable light with you - like one of these. They're brilliant.