I'm using them for evaportation cooling. These take a lot of current. You need a heavy gauge USB cable or power or the cables get warm. I decided to Give it's own 5 volt regualtor and eliminate the USB cable. It works well.
t***u (496)- Feedback left by buyer.
Past month
Verified purchase
Fits in .335 perfectly. I cut the ends off to get the right weight for each club. Cuts easy with dikes.