Yes Macgyver,
The one called "Illuminated Torch" in the "tactical devices" section on their website are the kind I have besides the regular glowrings.
The light output compared to a standard green 360* krill is a bit less but not much. Very similar.
They are very handy devices, but have their limits. There is a trade off, you have, for practical means, an unlimmited lightsource that will work under the most extreme conditions and requires no external power source whatsoever, but it's limited to the tasks it was designed for ie. upclose tasks with low light output demand like reading books/maps finding stuff in your tent or as a nightlight. It's no SAR searchlight.
Like I said, you can have a conversation with your buddy inside the tent at night (again, dark adapted eyes) and be able to look each other in the eye, but the light will not be visible to someone outside that tent .
If you want one you can order online from Penrith Survival.
see: http://www.edirectory.co.uk/pf/pages/banner.asp?companyid=55
Pharaoh.