Haha I actually had a buddy over that is somewhat of a flashaholic hes just not into forums and online stuff. I showed him my malkoff Drop-in for my 4D mag and he said "Ohh ive got a magled too!" I proceded to inform him that it wasnt a "magled" it was a high end drop-in LED replacement. So he pulled his out and we shone them around in the trees for a couple minutes and sure enough 5 minutes later he said "well there wasnt a whole lot of difference when we first turned em on but yours is way brighter than mine now!" then I explained heat sinking and regulation and a few other reasons why the Malkoff drop-ins are superior to the magled replacement led things.