"Light-It-Up" LED fixtures: E224 Box Light E225 Recessed Light E226 Valence Light
Parts in this slideshow: ExtraBright LED Tapewire E215 Light Backer E239 Connectors (8mm) EL66 Eyelet Tool CK1023-40 Small Hollow Eyelets Wire 20 - 24 Gauge
Other ways to connect LEDs: E215 Striplight with a E239 Connector
Eyelet to installed tapewire
"Daisy-Chain" with Roundwire
Parallel (side-by-side)