Our Pre-Wired TAB 3528 SMDs (Surface Mount Device) comes mounted with the resistor right on the PCB and are about 9.5mm x 10.5mm with wire leads that are at least 15cm+ in length.
Soldering any SMDs isn’t easy and requires a lot of practice and specialized soldering equipment. Our pre-wired units take all the work out of it for the modeler. These units will also light up at 9v or below, but will be dimmer.