Works well and has many lighting combinations but you have to go through each of the 20 or so options every time you want to change the pattern, only changes in cycle or in the same order, useless if you face outside during the day and you can can't see the lights or if you want to quickly find a pattern. I bought it when it was half the price so it was good value and lasted many months. The suction cups often fall off, I had to buy replacement suction cups when 2 were lost just by taking and taking out the glove box to use. The suction cups are visible from the outside of the vehicle and therefore do not have a permanent appearance. Easy to attach and detach the windshield in the cab.
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