Lego Parts: Electric, Light Brick Trans-Clear 2 x 4 with Red LED – Wholesale~BricksandFigs
Deluxe 4-Way LED LEGO Traffic Light Intersection Kit
Amazon.com: SCS Direct Light Up Building Blocks Bricks Set of 8 (2"x3") Bricks with On/Off and Dim Ability - Red, White & Blue Colors - Compatible with and fit Tightly with All
LEGO Light Brick LED Electric 2x3x1 1/3 Trans-Red Batteries Included 54930c01 | eBay