BrickLink - Part 54930c02 : LEGO Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light (Glows Orange) [Electric, Light & Sound] - BrickLink Reference Catalog
Lego Electric Light Brick 2 x 3 x 1 1/3 WHITE top and Yellow LED 54930c02 | eBay
LEGO PART 45360c01 Technic Gearbox 3 x 3 x 1.667 Corner (Complete) | Rebrickable - Build with LEGO
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Lego Parts: Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light
LEGO 7065 - Electric, Sound Brick 2 x 4 x 2 with Space Sound - Light Bluish Gray | eBay
LEGO 54930c02 4526177 Dark Bluish Gray Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light (Glows Orange) | electricBricks : LEGO set and parts shop and database
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Lego Parts: Electric, Sound Brick 2 x 4 x 2 with Light Bluish Gray Top – Wholesale~BricksandFigs