For the reflection mirror of its floodlight, Sanshin uses a well-polished aluminum sheet chemically coated with high purity silica glass at high temperature. Accordingly, the floodlight features high reflective efficiency; display excellent resistance to corrosion, heat, chemicals and contamination; and maintains brightness for long time. As main material for the lamp body, stainless steel and aluminum, which have excellent anti-corrosive properties, are adopted, with bake-coating performed after anti-corrosive treatment.