It indicates how much power is coming from the battery which was a nice surprise. I haven't plugged multiple devices in yet but assume it also indicates when the power level dips so you know if another device will have enough power running to it. I don't know a lot about 12v. I didn't read the full description before buying it, just needed a double outlet for 12v.
Verified purchase: Yes | Condition: New
Works perfectly, holds in the socket well. Plug is longer than on photos though, so the adaptor sticks out very ugly on the panel. Won't use it because of this.
Verified purchase: Yes | Condition: New
We now have one in each of our vehicles to run the car camera and satnav. they work well, but are rather bulky, giving restricted room for the gear selector to return to the Park position in a new Corolla.
Verified purchase: Yes | Condition: New
The head of the dual cigarette lighter sockets is a bit heavy. I've had some trouble with it staying put in the car cigarette lighter socket, but when it stays put it works well.
Verified purchase: Yes | Condition: New
Once adjusted this speedo works great on my Classic car. (Follow easy instructions to perfect speed) Much better than relying on an old MPH speedo. Can take a minute or two to connect sometimes. But all GPS’s do this....
Verified purchase: Yes | Condition: New
Bought this for an out back weeklong car rally where there would be no base power available. With this unit , multiple charging can be achieved whilst on the road . The fact that it can be adjusted to suit it's location was important. Unfortunately Covid19 has stopped the rally so it's reliability is yet to be tested .
Verified purchase: Yes | Condition: New
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