California JOS 50 PCS Colorful 5mm LED Light Diodes, LED Circuit Assorted Kit for Science Project Experiment (10pieces/Color)

Works well. They display the different wattage for each color. It helps with calculating the resistors. They work. Good product. 👍

Great product for hobbyists small projects. Great price fast delivery. Quality is good. Recommend it Recommend them.

Bright colors

Great little lights that are bright. No where in the package did it say there was a +/- wire which would’ve been helpful to know. I had to come back to the project page to see it was mentioned in later images. I liked the quantity for the price to use in a STEM class flashlight project. It helped to keep prices down. A good value.

Perfect for my project...indicating preset state on an amp modeler with bright LEDs *** The project uses four of these BRIGHT LEDs to shows selection and state of four guitar amp channels (green=clean/blue=slight distortion/red=heavy distortion/yellow=set controls for heart of the sun). Each channel can have four customizations implemented in code, represented by LED patterns solid, slow flash, fast flash, and dit/dah (short flash followed by long flash). My build uses an esp32 to bridge a mvave chocolate plus four stomp switch controller to a spark go modeler.

Worked great for my daughter's science project

They have good color and don't need more than 3ma to look bright. It is a good assortment and the price was good as well.

Over half of the bulbs did not work. Luckily I had enough for the project I needed them for, but I wish I had time to return them and order a different product. Of the bulbs that worked, the green were very dim.