Whelen TAM 83 LED traffic advisor

Comparison between the most effective flash patterns of both the TACTLD1 and the TACTL1A control heads for the Whelen TAM-83 LED traffic advisor. The TACTLD1 is capable of four distinct arrow styles (video only shows "Sequence On/Sequence Off"). The TACTL1A is capable of eight different arrow styles (video only shows "Sequence to Solid"). Rear window has factory tint. Personally, I think the TACTL1A solid arrow is more effective for directing traffic, but the strobe flash pattern of the TACTLD1 is more attention getting. While directing oncoming drivers left or right is important, it is secondary to being seen and not being struck. For that reason, I use the TACTLD1.