Holder diameter: 9mm
OK for Tri-Cree LEDs (up to 1.5A max per die, connector pin)
NOT RECOMMENDED for Neopixel strips and other string blades (this connector type is not for high currents)
Holder for a 4-pole 3.5mm male plug for general use.
4-pole 3.5mm connector (for all single color and RGB setups with "Direct Drive" sound boards like Nano, CS, Prizm, NEC...):
male side - www.ebay.com/itm/20pcs-3-5mm-4-Pole-Male-Repair-Earphones-Jack-Plug-adapter-Soldering-copper-/161428650311?hash=item2595e5b947:g:dyYAAOSwVFlUHivO
female side - www.ebay.com/itm/2-pcs-3-5mm-4-Pole-Female-Repair-headphone-earphone-Jack-Plug-Audio-Soldering-/251203943986?hash=item3a7cebfe32:g:-48AAOxyrjZRqhhV