This is the new XM-L2 LED version of this flashlight, the info listed is from the older XM-L version. The flashlight with the new emitter will be about 15% brighter than the older model.
Spark started off making some very cool headlamps and has recently gotten into the making of flashlights. They have two switches, but unlike other dual switch lights on the market, both switches do the same thing, giving you excellent versatility in how you use the lights. The 190NW has a neutral white/outdoor tint and the 220CW has a traditional cool white tint. Both models are using the XM-L LEDs, which will light up a larger area than the XP-G LED models.