I got two of them a few weeks ago. One I left with the 8 7135 chips at 2.8 amps it’s an okay light with lots of spill. The other I added 4 7138 chips bring it up to 4.3 amps and it really brings this dropin to life. As is maybe 1100-1200 lumens, extra chips 1500-1600 lumens. My 12 7138 chips dropin from Pflepro actually measured 1790 lumens at 4.56 amps. The dropin is definitely worth it and works very well. With the extra chips it needs a good wrap of copper and is very much worth the effort.