{"id":4134,"date":"2009-12-30T09:18:51","date_gmt":"2009-12-30T03:30:06","guid":{"rendered":""},"modified":"2011-08-16T12:50:59","modified_gmt":"2011-08-16T06:50:59","slug":"4sevens-quark","status":"publish","type":"post","link":"https:\/\/kk.org\/cooltools\/4sevens-quark\/","title":{"rendered":"4Sevens Quark"},"content":{"rendered":"<p>LED flashlights are still evolving, but the best model powered by a single AA battery is currently the 4Sevens&#8217; Quark. Its nearest competitor, the Fenix LD10, is a fine flashlight, but it&#8217;s not that much of an improvement over the L1D-CE that I <a href=\"https:\/\/kk.org\/cooltools\/fenix-l1dce-fla\/\">reviewed<\/a> a couple of years ago on Cool Tools. The original Fenix L1D-CE used a then-revolutionary LED emitter, the Cree XR-E, but since then several flashlights use even newer and more efficient LED emitters from Cree &#8212; including the 4Sevens Quark.<\/p>\n<p>The Quark, as with Fenix, has the ability to use the same interchangeable head for three different battery configurations: a single AA battery body, or two AAs, or a single CR123 lithium body.  And though the Fenix LD10 has a higher max output from a single AA than the 4Sevens Quark, the Quarks show better efficiency-brightness when used in the 2x AA or 1x CR123 configurations.<\/p>\n<p>The Quarks also have a self-centering design for their emitters, so their beams are really close to flawless. Compared side-by-side with the Fenix beams (which are still pretty good) the difference is pretty obvious.<\/p>\n<p>The maximum output of the Quark with a single regular alkaline AA battery is now an astounding 109 lumens. This is brighter than the once-monster Xeon SureFire 9P rated at 105 lumens with three CR123 Lithium batteries! <\/p>\n<p>Although the Quark&#8217;s max output with a single AA is indeed very bright it is sometimes too bright &#8212; imagine trying to read with 109 lumens a few inches away. That&#8217;s why almost all of the better flashlights have lower light levels; and most users tend to use these lower levels far more than the maximum. The Quark AA goes one step better by providing a very low Moon mode level of 0.2 lumens (compared with the LD10&#8217;s 9 lumens low setting), which helps preserve one&#8217;s dark vision adaption  for those close hand-held tasks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Top AA Flashlight<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"0","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[41],"tags":[1350],"acf":[],"_links":{"self":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/4134"}],"collection":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/comments?post=4134"}],"version-history":[{"count":0,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/4134\/revisions"}],"wp:attachment":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/media?parent=4134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/categories?post=4134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/tags?post=4134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}