Energy efficient, durable and brilliant light quality. Made from strong plastic that blends into your hardscape keeping its new look forever. Excellent lighting in all temperatures and weather conditions. The lights are seamless with no light seepage around the edges.Their unique structural design can support the weight and pressures of the wall. The textured lens helps it integrate with the rocklike surface texture of most wall products. Both use low voltage 12V DC systems.Use Cornelius underneath pillar caps and on an outside corner.