Information below provided by Woodland Scenics:

All you need is power! This is the quickest and easiest way to add lights to any project. Use the individual dimmer controls to regulate light brightness. Add an optional Auxiliary Switch for convenient operation.
Powering Your Light System- You will need one Just Plug Power Supply (JP5770 - see our store) to power up to 50 lights on your light system. RoHS compliant

Kit includes:

• 1 Light Hub - 3 3/8" l x 1 5/16" w x 7/8" d (8.57 cm x 3.33 cm x 2.22 cm)
• 1 CTRL Port Plug (installed)
• 2 Warm White LED Stick-On Lights with 24" (60.9 cm) cables
• Double-sided Mounting Tape - 1" x 2 1/2" (2.54 cm x 6.35 cm)
• 2 Mounting Screws
• Illustrated Instructions