Light Valve: Difference between revisions
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Alternative term: Sun Valve | Alternative term: Sun Valve | ||
Latest revision as of 09:11, 17 September 2026
Alternative term: Sun Valve
A device, operated by daylight, that automatically lights and extinguishes a gas light, usually lighting it at or about sunset and extinguishing it at or about sunrise.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
