Thanks for the great review. I have a few of those from DX as well. They are great when standing directly behind the light, however dont have the total output power of the 9 LED version when the modes are set to make the LED’s all flash at once for maximum visibility. Also, the 9 LED version has a superior peripheral signal since 2 of the LED’s are mounted to each side of the housing at 90 degree angles for side flash. I use one of each model to get noticed. Each light alone does a fine job of signaling. Both of them together are FAR superior.
Also, run these on Eneloops for maximum sustained output. On primaries, voltage sags quickly when all LED’s are set to flash simultaneously and output becomes greatly reduced.
