Lost a Stylus Pro by Streamlight so I ordered a new one on EBAY. The new product info specifies 90 lumens. Could not find this new addition listed anywhere including the Streamlight website. Called Streamlight and they said it is just out and were suprised I had been shipped one already. Still listed at 6.5 hours runtime but the graph shows it at about 9 lumens at the end of 6.5 hours; a little less than 50% at 3 hours. I'm just realizing how bad the runtime is since ( I'm assuming) it's unregulated. It has made me more appreciative of my TeraLUX lightstar 80's. Although a bit larger, they are 80 lumens and run regulated for 5 hours. A very neutral led as well.