I have not disassembled the USB power adapter but it is listed as 2.1A in the installation/usage booklet. Typical molded USB power indicators and electrical test laboratory certificates are not available. This product is not UL listed or indicates any independent electrical quality certification. The installation instructions ridiculously require this unit to be installed by a licensed electrician. I am not one of those people, so I installed or used this product for that reason and my personal policy of not using uncertified electrical components near people who do not deserve a fire. For those of you with a higher risk tolerance, here is some hopefully helpful information: The size of the mounting holes are approximately 3 and 5/8 inches. You can get away with 3 & 9/16. The down (or rather up) screw-in sleeve has a pair of holes that can be used to fix the orientation of the connector assembly if desired. You can get the same or better results by putting some rubber cement under the fork flange. The plug attaches to a power cord (not included), but an old computer power cord will do and cost maybe five dollars from Revain.
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