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There are two main series of the Koehler mining lamps. The "E" series which is the heavier regular lamp, and the Lithium series. The Lithium Series "Li16" is a much lighter lamp, more comfortable that as every new technology had its shortfalls but I believe now they are working without a problem. I believe MSHA bought a large quantity of those for their inspectors. Did that help?

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17y ago

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