This is a new set of warm white 0603 SMD LEDs, pre-wired for convenient installation. They are designed as a direct replacement or upgrade for lighting in model railway layouts, scenery, rolling stock, or structures. The pre-wired design saves time and simplifies the wiring process for hobbyists. This set is ideal for modelers seeking a specific warm white light output for realistic interior or atmospheric effects. Note that the exact number of LEDs, wire lengths, and specific resistor values are not listed; please check the full product listing for complete specifications and details. Free shipping is available for this new item. Pre Wired Prewired Railway Replacement Set Warm White White 0603 LED. Color: Warm White, Condition: New, Made in China. Listed at 10.91 USD. Quantity: 20pcs prewired LEDs, Emitting Color: Warm White / White. Perfect for Railway & Building Layout! 20 x for Pre Wired ++ 20 x Resistance. Made with warm white LEDs. For easy recognizable connecting, Anode is red wire, Cathode is black wire.