- Twofer
A twofer is a cabling device used in theatrical
stage lighting . It allows twostage lighting instrument s to be connected to onedimmer . It is wired in parallel, such thatvoltage is consistent throughout thecircuit , and current is shared between the two instruments. Twofers can be used in conjunction with cables with the same types of connectors. [http://www.theatrecrafts.com/glossary/glossary.shtml theatrecrafts.com glossary] ] The name is a corruption of the phrase "Two For One".UK terminology
The UK equivalent of the twofer is a Grelco. The name derives from the manufacturer of the original examples, but is now generally adopted for all examples regardless of manufacturer. It typically relates to a splitter for the UK 15A power connections commonly used for stage lighting. It is usually an integral block rather than a plug with two cables leading to two sockets. Where a single plug goes to 3 or more sockets it is sometimes known as a Trelco. [http://www.shepperd.co.uk/glossary/pages/Lighting/Cables_and_Distro/]
Typically for most other power connector types used in theatre, the term "(2-way) splitter" is used.
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