These LEDs are 3-lead type with positive centre common. Prototype white emulates incandescent light giving a warm light that looks right for all steam era and early diesels. The red is a rich ‘safety red.’.
Layout Concepts LED-RDT Tower Type 6x 2mm (w/resistors) Red
Layout Concepts DCD-DAP Alpha Panel Layout panel for NCE and Roco
LED-RWT DCC Concepts 2mm Tower Type LED Red & Prototype White (6)
LED-PWT DCC Concepts 2mm Tower Type LED Prototype White (6)
Ertl Thomas the Tank Engine Track Bundle Curved Layout Point & Water Tower Percy
