Imported post
Hi,
OK, are you sitting comfortably, well here we go;
1) the burn time is fantastic, I have done a liveaboard for a week and did not charge it once, that was wrecks and 3 nightdives
2) the 30W bit, this is supposed to be equivelent but, there is no real way to give this information, light intensity is usually measured in candellas or lux, but..... white light LED's are actually blue LED's with a phosphor, the LED lights up the phosphor and it is this that emits light at around 5,800 degrees kelvin, if you think halogen is around 4,800 deg. K. then the light can not be yellow, it is in fact quite blue in colour, but not as blue as HID. The lamp head gives a bit of an odd beam, it has a fairly bright centre, from about 3 M this would measure about a foot in diameter, with a further less intense spread to about 2~3 feet out side of this. It is not as bright as I would really, really want it to be, but at no point have I ever found it to not be bright enough, but as for 30W, it just can not be compared as this is a measure of power consumption.
UK viz and light, again, it has not been a problem, so far it has been more than good enough.
The big thing for me was it's convenience, long burn times and a better than reasonable light intensity. Also, with the umbilical, you can get an HID head which fits all the same bits, so if I really wanted a very bright lamp I could add one of these to it. So far it has not been necessary.
Hope this helps.
Andrew