Unsure what set this is
This is:

31051-1: Lighthouse Point


based on the 1 x3 brick in Medium Blue and the Red Plate, Modified 1 x 4 with 2 Studs without Groove

The "odd' brick is  Dark Bluish Gray Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light (Glows Orange)