Thanks for that Ivan i've just found my "best" LED headlamp so was trying it out in order to get an idea where i'd have these set up.
Seeing as these'd have a big old transformer are you forever switching on & off at the wall or is it pretty efficient?
I may also simply try one of those 3 watt lamps I saw on ebay for a cupboard (though admittedly 12v is preferable) in the interim or do you think that's a no-no? ..again this is based on my holding my Myo Xp up in the larder at a typical light fitting position.
Incidentally, & typically just before I found my lost Myo XP led headlamp I bid up on one via fleabay, seems they're going cheap currently, I went for the myo RXP as it's regulated & programmable light levels allowing you to go as LOW as 8 lumens whereas my old Myo XP is not, which suits me fine as 2 are very useful to have around,
Superb for checking the livestock, stables etc..
However using predominantly rechargeables burn time with more lighting than I deem necessary on numerous occasions has made me think i'd like to dial in to my actual lighting requirements & therefore longevity on a trip or simply to eke out what I can efficiently ..make sense?
Needless to say It rrp's at around £70 however the chap selling them is only obtaining a price of £30-36 for them as he's not listing clearly enough for them to be found, this is way cheaper than the old myo xp model sells for!
..if anyone is in the market for one, hopefully the cheap price will hold (a gamble, but when isn't an auction)?
heres a link it ends soon (( 09 Aug, 201120:47:12 ))
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=180706753011&ssPageName=STRK:MEWAX:IT#ht_500wt_949if you clicked a buy it now you'd be looking at £63.00
So anyone with a kid doing Dof E this may be a chance for you.
A really handy bit of working kit possibly for fitters & sparkies, though somehow I don't think this seller will be issuing a vat invoice

The old xp is superb for rootling around the water tank, loft etc & runs on 3 AA's (suitable for lithium & rechargeables) offering a decent strong light.
Just thought i'd put it up here as it's too good to miss & petzl use pretty good LED's plus for any upgraders theres dedicated forums for revving up existing torches / headlamps
(tip look at their feedback they've sold a few plus grivels & ice axes etc, I will however be cracking mine open to check it's led type & thus authenticity, just in case)
This is the sort of light i'd wear for night cycling etc to help out, pretty versatile & rugged.
Only one currently but might be worth noting & stating if you intend to bid (so not to bump up price for another Navi member, he has sold these before, so theres every chance again.
Hope this helps someone out, eg a loft crawling fitter / plumbing type.