The ST2K light bar and ST4K both have very different beam patterns. Below you will find a short driving sequence of both these light bars which should give you a clear characterisation of the difference between the two.
NOTE: The vehicle featured in this video has factory fitted Bi-LED head-lamps.
ST4K 22" 40 LED
ST2K 21" 8 LED
ST3K 21.5" 20 LED
ST3301 24" 16 LED
Also check out our LED Light bar buyer's guide which has detailed description and night shots of our entire range. You will also find a very helpful comparison slider at the very top.