inputs.text: short life span poor customer replacehement finally get replacehement quit - stopped working 8 hours intermittent use replaced batteries new batteries twice still not work cleaned contacts etc still didnt work initiated return amazon forwarded request distributor china ok see going distributor emailed wanted picture product hmmm good picture nonworking bike light ok submitted picture got email back said would replace would take 30 days shipping got email amazon said return closed duplicate request made 1 request still waiting replacement light doubt ever see bv bicycle light set super bright 5 led headlight quickrelease 80 hours another bike worked hours hours highly recommend ok got replacement quit working 6 days battery replacement used new ones working light didnt work piece junk updated 2 stars update march 2015 finally received replacement dont know yet work well update review get experience