The Legacy Solo has most all the same features are the regular Legacy with a few less diodes. However, still brighter than the Liberty and available in single colors only. For the price its an awesome bar.
http://www.strobesnmore.com/Whelen-Legacy-Solo-Super-LED-Lightbar.html
http://www.strobesnmore.com/Whelen-Legacy-Solo-Super-LED-Lightbar.html