The Stealth 27" Linear  is the Largest of our mini Lightbar range but still packs the bright punch of the largest bars, with the same High performing LED. The Stealth design simplifies the overly complicated light bar market and features super bright LEDs Available in TIR LED or Linear LED Clear-coated polycarbonate anti-cracking, anti-yellowing lens moisture-proof with high-grade aluminum chassis

TIR vs Linear 

TIR light pattern stands for “Total Internal Reflector”. The best way to describe the light pattern would be to compare it to a flashlight. The spread is round and narrow with a 50-degree spread of light. The strong suit for the TIR is that the light is focused and directed giving a very bright light beam. The downside is that it covers a very narrow area. So it's brighter but narrower whereas the Linear is wider but not as bright.

Linear Light pattern is best described as producing a wide angle of light generally producing 180 degrees of light. This light pattern is highly effective for covering a wider angle however since the light head is being spread over a wider angle it appears much less bright than a TIR.