These are 3mm LED's of which I used one to replace an incandescent bulb. It works but it wasn't bright enough, so I decided to get 5mm lights instead.
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EDGELEC 180Pcs 5Mm 9 Colors X 20Pcs Assorted LED Lights Flat Lens 1.14In Long Lead + 300 Resistors (DC 6-12V) Bulb Lamps Light Emitting Diode Kit
6 Review
Adjustable Focus 405Nm Blue Violet Mini Dot Diode Module Head With 100MW Power For DC 3-5V Micro Tubes
4 Review
Upgrade Your Car'S Interior Lighting With Phinlion Super Bright Green LED Bulbs - Pack Of 4
5 Review
Upgrade Your Car Lighting With Phinlion'S Super Bright DE3175 LED Bulbs - 500 Lumens, 3030 6-SMD Festoon, Pack Of 4
7 Review