Full spectrum lighting (FSL), a critical feature for lead-free assembly and inspection applications, is now supplied free of charge on all illuminated magnifier products. Full spectrum light contains the entire range of visible wavelengths, so that the human eye can see all objects and a range of materials; helps to inspect lead-free solder connections.
According to president Richard May, "Lead-free solder connections are not smooth and shiny like those of lead-bearing solders; they are rough, irregular and frosty-looking. This surface appearance makes it even more difficult to see microscopic cracks, voids and defects in a solder joint, or to judge between an acceptable defect level and an unacceptable one. Full Spectrum Lighting gives the inspector or assembler a critical edge in working with lead-free connections, adding enhanced visibility to duller and rougher lead-free alloys so that effective inspection can be accomplished."
The O.C. White Co., ocwhite.com