A light source is disposed in a cavity in an enclosure that supports a part of the wall. The enclosure may be disposed substantially within the wall, such that the enclosure does not provide an obstacle to those moving near the wall. Because the enclosure is capable of supporting a part of the wall, the enclosure may be substituted for one or more substructures of the wall, including, but not limited to, concrete blocks, cement blocks, bricks, cinder blocks, and combinations thereof. The enclosure may be disposed at most any height in the wall.

 
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< Cementitious based structural lumber product and externally reinforced lightweight retaining wall system

> Movable toy and movable toy set for the same

> Treatment of crude oils

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