microtivity IL611 5mm Diffused RGB Controllable LED, Common Cathode (Pack of 12)

I've only used one so far but it has worked perfectly for my needs. I created a cable out of an old Ethernet cable and a 10 pin connector and wired the led so I could connect it to a serial port on a motherboard in a Windows PC. The LED itself is a perfect replacement for the power led in the computer case. I'm using Windows 7 with Windows Media Center and when I have a recording in progress, this led turns red. I'm also able to program it to turn other colors for different reasons. Using software called LEDsDriver by Slick Solutions and EventGhost for different events.

I take away one star because I wasn't given the correct resistors with my pack.The actual LEDs are VERY bright. They're diffused correctly so they're great for any project that needs a colored indicator light. I've used about 6 of these now. And would buy again!It was marked on the pack that "included" were 24x 200ohm and 12x 220ohm 5% resistors. My pack didn't include these, though I was given a full refund! I had plenty laying around though, so that worked out in my favor.Common cathodes are EASY to use and these are a good choice!

I bought a set of these to wire up to a set of six Raspberry Pis (a 'Bramble'/cluster), and I'm using them to indicate server status using different colors. You can use PWM to set any color you'd like, or even to fade LEDs if you'd like.I also have one wired up to an Arduino for a temperature indication project as well. They all worked great, didn't include any resistors (like the picture shows), even though the printed card with the LEDs said resistors were included. No big deal; I have a box of spare resistors :)Wiring these up, make sure you have a resistor on each color leg—so 3 resistors per LED!

Really love the brightness these LEDs have. This item is for the common cathode one. Didn't know the difference between common cathode vs common anode so I had to read about them. I'm a beginner so I still don't know that much about the specifics but it was really easy to set up for my project. I also bought the common anode LEDs and for my needs I like to use them. Also read up that the common anode are overall the preferred ones to use. Bought my other LEDs from Microtivity and I love them. All LEDs that I received worked perfectly.

Decent assortment of small LED lamps.

They came packaged exactly like in the picture. All worked, but I popped one fairly quickly.They served their purpose perfectly. Just make sure you know you want the 5mm diffused.If you are not familiar with LEDs, viewing angles play into the "relative brightness" (how bright it is when you stare at it). The diffusion makes the angle wider and actually makes looking straight at these LEDs running at full juice somewhat bothersome to my eyes. If you are looking for LEDs to incorporate into something you will often be looking at, I would recommend surfing for some clear cap ones.

Item arrived securely packaged in a sealed ziplock. These are the first RGB LEDs I've purchased and I think it was a good decision to get the diffused vs. clear lenses. Output is brighter than I expected. This is a must have addition to your Arduino maker kit.

As always, super high quality product.Something to keep an eye out for when ordering Microtivity product. All the ones I've seen are shipped in good quality zip lock bags that are sealed at the top and need to be cut open. They will also have a handy description card in the bag with it.If you don't have that, I'd bet you're playing with a fake.