The UTAH PACIFIC LU-66 Constant Light Unit is a pre-built electrical component designed for model railroads in HO scale. This unit features a sleek black color and is ready to go straight out of the box. Made in the United States by the reputable brand UTAH PACIFIC, this constant light unit provides a steady light source for enhancing the realism of your train layout. Perfect for adding a realistic touch to your model railroad setup, this unit is a must-have for any collector or enthusiast.