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Originally Posted by vlus
a) what is the purpose of the transformers?
b) do I need them if I plug the pinspots in individually, as in the 3 fixture example above?
c) or are transformers only needed if all the lights are wired together into a single plug? and even then why? what's the difference if 10 or 12 are all plugged into a gang plug and then into a dimmer, or if they are all wired together?
d) or are the transformers needed because the lights are going thru dimmer packs?
e) do the pinspots normally come with or without the transformers?
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From an Australian perspective I am refering to what we call a Pin Spot (see below)
a) Pin Spots are
Par 36 (low voltage) lamps which require a transformer to provide the reduced voltage required by the lamp. From memory it is 6V and 35W but I could be wrong and would need to check. A Par 38 lamp however, is a mains voltage lamp that you can buy in a variety of colours and usually come in 80W or 100W. You will often see these used in outdoor applications
b) The transformer is part of the pin spot and sits within the body of the light, behind the lamp.
c) The pin spot (that I refer to) should not be placed on a dimmer (see
http://www.controlbooth.com/postlite...ansformer.html for additional info) but should be used on a switch pac
d) See above mentioned link
e) As previously mentioned, the transformer will come with the unit
Hope this helps