They changed the headlight on the newest model
Those are dual LED lights on the front. I have not stopped using this thing since I bought it. It cleans the carpet so well and to be honest I find a few features more convinent than my rainbow.
-The Power nozzle has complete control switch on the handle in which you can turn the whole vacuum off or just the nozzle itself.
-The Power nozzle itself really seems to deep clean and groom carpet very well (including shag rugs)
-The water basin is large capacity and is very easy to carry when full of water.
-The water basin is also very easy to clean as it is a bucket design.
-The machine automatically adjust from air cleaning mode to full power once the hose is inserted
Bottom line is, for the price I paid for this, it truly is worth it and I plan to use it often because it is fun to vacuum with it, not to mention it does have very good cleaning ability and so far pretty good quality.