SHP v NSH ignition voltage confusion - diyAudio
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Old 12th November 2009, 02:36 PM   #1
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Default SHP v NSH ignition voltage confusion

On every where I look, it says that SHP is low voltage DC and NSH is high voltage DC.

Most places i've researched say low voltage bulbs have the lead wire twisted on top portion of bulb and high voltage bulb doesn't or just has one twist on top portion of bulb.

Then why has my Infocus LP600 (200W SHP) has one twist and my HP VP6121 (200W NSH) has lots of twists on the top part.

Does that mean that SHP is actually high voltage whereas NSH is actually low Voltage ignition?
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Old 18th November 2009, 02:57 PM   #2
ywh is offline ywh
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SHP: some one is low Voltage ignition,
NSH: high Voltage ignition,
take a look the ballast, that is high Voltage ignition if there is a FLY BACK TRANSFORMER
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Old 22nd November 2009, 02:13 AM   #3
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If NSH is high voltage ignition, then why is it that the original lamp in a HP VP6121 has a lot of windings on the top portion?
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Old 22nd November 2009, 04:34 AM   #4
ywh is offline ywh
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a lot of windings can help ignition, every burner have windings
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