Disadvantages:1. I had to superglue suction cups to the windshield to keep it from falling every 20 minutes.2. I don't know if it was a bug but eventually the last LED in motion arrow mode stopped working and to fix that I had to turn the car off and on again, very weird but thank god it finally worked. 3. The standard cord length without extensions was ONLY to the front of my car (Crown Vic P71 2011)4. I didn't get the instruction manual and the suction cups are very painful to clip on. Advantages: 1. Very bright even after tinting 3%2. The video how to use the control box is very helpful3. Would recommend this for professional law enforcement any day. The LED hardly reflects (when off) light coming through the windows, which is great if you want it to be discreet4. Very durable and better than cheap ones and well worth the price.
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