Can someone explain the LED colors. When I plug it into a USB port in USB mode I get a blue and red led, when I plug it in under power I get just blue
344312
It is simply two LED lights, one blue and one red. When the battery pack is charging, both LEDs are on to let you know that it is charging. And when it is connected to charge something, the blue LED turn on to indicate that it is charging, and still have power.
916788
If you turn the RGB dials an no other colors will show, you might. You can always RMA it and try another one. So far I've had no issues.
2137567
No annoying flashing LED's but a low level blue LED in the USB sockets. The one that I have is the 7-port USB 3.0 which is similar to the 13 one that you are looking at.
1671847
My light just had brown (brown/red) and blue. I used brown/red for positive (red) and blue for negative (closest to black of options provided). It works. I didn't have yellow w/green stripe. Green is usually a ground, but don't know why there would be one on a 12v DC device.
1307242
the colors on mine are red to blue. sometimes it takes along time, 8+ hours to fully charge the battery.
1490668
No. It sounds like a defective unit. The LEDs should only flash when charging.
1129984
For mine, I have to have a device plugged in, then with the button pushed, the light comes on. If all 4 usbs are plugged in, and with the 4 buttons pressed, all 4 LEDs come on.
1184674
That's most likely because there's only a blue LED in it. If you're handy with a soldering iron, you can change the LED to what ever color you like.
647671
Normally it should be red, I don't know why the discription says blue, but the 'MX red' should also definitely be with red LED lights. Also, its not switchable.
249579
It should charge from the usb. Some show nothing as far as an led etc but they are charging.
1930608
Mine was bought on July 2011 and the LED colors were blue. Still going strong btw, love these speakers =)
2137569
There is a blue LED at one end of this 13 Port USB, but it does not flash. It is there just to indicate that the power is on. I'm very glad I purchased this since all my flash drives are now plugged in and I still have extra USB Ports available. Hope this answered your question.
758692
When the unit is plugged into the wall (for charging) the light will be red. When it is fully charged, it turns blue. At this point you can unplug it and carry along with you. When you plug a device into it for charging, the light turns on and is blue.
1857781
There are 3 modes: 800/1600/2400DP . Each one has a different LED color. (green, blue, red)
1560400
Start over again. Uninstall all drivers, software etc. Then restart PC. Once it has restarted attach received to another usb port. Not the one u have currently plugged it in. If the received still does not show an LED. U need to have it replaced.
2137566
There is one blue light when the device is plugged in. There are not individual lights for each port.
1505454
Since it's just an LED light, you can see it as well as you can see any LED lights. They're just red or blue in color, instead of the normal white. The blue light was not working on my item, but the red was my main concern anyway since I'm not growing flowers. The colors just show up as a greyscale-type reds in varying degrees, depending on the items it's reflecting off of. For example, darker colored things in white light will show as a darker red, white items appear as a lighter bright red. If the blue LED were to work, I can imagine it would show a slight purple tint instead of pure red. It's also quite bright if you look directly at the LEDs while they're on. Since it's just an LED light, you can see it as well as you can see any LED lights. They're just red or blue in color, instead of the normal white. The blue light was not working on my item, but the red was my main concern anyway since I'm not growing flowers. The colors just show up as a greyscale-type reds in varying degrees, depending on the items it's reflecting off of. For example, darker colored things in white light will show as a darker red, white items appear as a lighter bright red. If the blue LED were to work, I can imagine it would show a slight purple tint instead of pure red.... » Read More Since it's just an LED light, you can see it as well as you can see any LED lights. They're just red or blue in color, instead of the normal white. The blue light was not working on my item, but the red was my main concern anyway since I'm not growing flowers. The colors just show up as a greyscale-type reds in varying degrees, depending on the items it's reflecting off of. For example, darker colored things in white light will show as a darker red, white items appear as a lighter bright red. If the blue LED were to work, I can imagine it would show a slight purple tint instead of pure red. It's also quite bright if you look directly at the LEDs while they're on. « Show Less