It is convenient that the plug is not required to be plugged in and removed, and it is convenient not to hurt the plug by turning on / off the switch, but one of the previous purchase purchased again because soldering of the internal plus wire was removed and it turned off. In first aid, I peeled off the line and connected it, but the inside is narrow so contact with minus. Because there is a danger of short-circuiting, I purchased again.
When driving on expressway
On 2016-07-31 07:05:14
Used as ETC power supply. I think that one who owns multiple units is useful.