Had my '900 lumen' DX Extreme lights for 2.5 years now and still going strong.
Bought some of the 1200 lumen jobs last year and they are still good too.
No beam shots, but the 1200 on the bars and 900 on me head is more than enough light to do a lap of Cannock Chase in the dark in the same time I do it during the day.
Can't beat them bang per buck
