I've got a couple of these £30, 160 lumen lamps from HK. Cant fault them.Almost to the point that it doesn't matter if they only last one winter,cause next year I expect we'll get 2000+ lumen for £20.
So much so, that I'm going to sell my Hope 1's
As for the cheapo LED light,s I've got three. All for the kids bikes.And they loved them, until they saw the 1600 lumen ones. Yes, they are OK for being seen,but useless for much else.
1997 GT Yellow Karakoram (had from new)
1999 M2 Mirror Blue Stumpy Frame (under bed)
2010 Yeti ARC
2011 Yeti ASR-5A