Im running at 3.75A which produces 7140 lumens (according to the datasheet), which is 100% rated output. I measured 102 watts being consumed by the driver. Now that the emitter is broken in, Im observing a 100% power factor efficiency while measured through my kill-o-watt meter. Im running mine without any type of reflector on a night stand mounted to a high performance CPU heat sink and fan. Its pointed up at the ceiling and bounces the light through the room. Ive been thinking about concealing the rig in a small wooden box with cooling ports for the fan and adding a ledil flood reflector with lens designed for this emitter. The fan would cool the heat sink first and then the passing air would be channeled over the driver before it exits the box.
The driver is adjustable by pulling out a plug on the front of the driver and inserting a screwdriver to twist a pot. The pot feels high quality and tight, but I wouldnt want to be tweaking it all the time since they probably werent designed to be used as dimmers.