3mm LED Light White/Yellow/Red/Blue/Green Assortment 750pcs
Now these are pretty nice. The whole kit looks well made. I will say that when looking at them in real life and not the above picture, the green looks a fair bit yellow and the yellow looks a little more orange. Apart from that, they seem great! They have a head diameter of 3mm, pin length of 18mm. The voltages are Red/Yellow：1.8V-2.3V；Blue/Green/White：2.8-3.6V；at 20mA. With 750 in each box, one or two boxes would cover a classroom pretty well for most projects.