Hi Tim, sorry, I missed your post (i usually get an e-mail alert, but didn't)
Anyway........yes, plenty bright enough for night time off roading - it's what they were designed to do really. The easiest thing with the bars is to just use the mount that fits - two are supplied. And.... I bought them new in early '09 , but they haven't been used very much. I didn't manage any night riding in winter 2010 and none so far this year - hence the sale! Please ask if you want any further info