Abstract: A lamp assembly is disclosed to include a bottom holder shell holding a light source, the bottom holder shell having faceted lens elements in the inside wall for reflecting and refracting light from the light source, an upper holder shell holding an inner lens above the light source, the upper holder shell having faceted lens elements in the inside wall for reflecting and refracting light from the light source, the inner lens having facets for reflecting and refracting light, and a transparent lens covering the top open side of the upper holder shell for refracting light from the inside of the upper holder shell to the outside in different directions to produce glorious luster.

Abstract: A battery charger has at least one seat, a charging slot with an interior step configuration to divide the charging slot into two plug-in regions. A circuit device is installed in the seat. The circuit device has at least one conductive terminal, which has to contact parts located at two plug-in regions. The charger further has a positioning base for mounting the seat thereon. By forming two charging slots with each two plug-in regions, the charging slot allows two batteries with different sizes and specifications to be charged at the same time. As the positioning base is easily fabricated with various dimensions, the battery charger can be expanded with a plurality of charging slots. In addition, the charger is easily assembled and utilized.