Check the listing for details. O scale Pass. Car LED Conversion Kit. Lionel, MTH, Williams, Weaver, K-Line 4pk. Color: White, Condition: New. Listed at 54.99 USD. Micro LED VAR Controller- Replaces incandescent bulbs with LED lights - Anti Flicker - Consumes less power - Does Not interfere D.C.S & TMCC signal- Feature's a adjustment screw for lighting intensity. *NEW* The Kit contains the following.(4) Micro LED controller Boards which measure (1 1/2in x 1in x 7/8in) L X W X H(4) 19.5" LED strips w/ Female 2 pin connectors attached (Enough to light (4) 21" passenger cars, strips can be cut to fit in smaller cars!)(8) shrink tubingflexible silicone wire used. These kits will improve the look of passenger cars (especially ones featuring window silhouettes) and conserve transformer stress from powering incandescent bulbs. Kits are hand assembled and put together. **Color - Warm White** This listing is for the kits only. Photos of the train car are for reference only! Looking for a 2 pack or 6 pack of upgrade kits? Check out my other listings for them!