Noco Genius G3500 Power Light Flashing

but it is unsettling to have the upstream light flashing

i use this with a 2 in 1 tablet computer, very portable. Runs on usb power, flashing LEDs tell you it's connected and talking to your devices. does not seem to lag, works well. fits well in gig bag with keyboard

Seriously, this thing is great. Just plop in up to 2 batteries, tells you their status and juices them up. They still have a good load, just take out the battery and skip the charge. Very easy to manage your set of batteries. Clear indication of battery status no reading, arcane, flashing / not flashing, is that amber or orange.... Works well in car also and does not require a power brick just a universal 2 prong power cord. Charging is quick but not overly (quicker = less battery life due to the heat). I have use mine with Fujifilm X I understand other adaptors are available. Most fujifilm users have or should have multiple batteries: I Higly recommended this

[This review was collected as part of a promotion.] I got this a few days ago and I already like it. Make sure you download the software before you do anything else. Once I downloaded the software it was fairly easy to set up. I did have a flashing power button so I called and they helped me quickly. Once you feed the label far enough into the feeder and hit the forward button the power button stopped flashing. I could see this coming in very handy for anyone who sends mail frequently or does.a lot of shipping. I could also seething being used for a small business. I do need to take some time to figure out how the software works and it does offer quite a bit. shipping. Like that it is portable so I can take it with me anywhere.

Solidly built, bright and exactly as described. A full click does the off and on, but if you ever want it, partial clicks change to low power or flashing light.

one knob to tighten them all? genius!

I use these for everything. So simple but so genius.

It is perfect, and the way that you can trun it all the way around is genius!!

Work of a genius! I love it.

This is a very nice headlamp, without two levels of white light, a red light and a flashing red light.  Having the battery pack on the back makes it much easier to balance and the straps are adjustable over a wide range.