Amazon.com: Lego Parts: Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light : Toys & Games
Amazon.com: Lego Parts: Electric, Light Brick 2 x 3 x 1 1/3 Red LED Light (Trans. Red) : Toys & Games
AA Battery Pack, LEGO® lighting – Light My Bricks USA
LEGO 2pc NEW 2x3 Orange Light Brick with Tab in Batteries 6277089 622954 | eBay
LED 2x4 Purple Battery Brick – Brick Loot
Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Red Top and Red LED Light : Part 54930c01 | BrickLink
Amazon.com: Sawaruita Light Up Building Bricks Multicolor LED Light Brick Sets Classic Transparent 2x2 2x3 Building Block Accessories Kit Toys Compatible with All Major Brands : Toys & Games
Lego compatible light bricks
LEGO Light Brick - LEGO Town - Eurobricks Forums
Amazon.com: Lego Parts: Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light : Toys & Games
Light Kit for LEGO - Double Red LED LEGO Studs with 2x4 Battery Brick – Brick Loot