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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π Chanzon 120pcs (6 Colors x 20pcs) 12V 5mm LED Diode Lights 24awg Tinned Copper 7.9 inch UL Wire Assorted Kit Pre Wired (Diffused Frosted Round Lens) LED Assortment in White Red Green Blue Yellow Orange Emitters
15 Review
Upgrade Your Car'S Interior Lighting With Phinlion Super Bright Green LED Bulbs - Pack Of 4
5 Review
Brighten Up Your Project With Edgelec 12V Pre-Wired Red LED Lights - Pack Of 50
14 Review
Adjustable Focus 405Nm Blue Violet Mini Dot Diode Module Head With 100MW Power For DC 3-5V Micro Tubes
4 Review