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OSRAM HQI-T Halide lamp

OSRAM HQI-T Halide lamp

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Salvage old 400w HQI-T lamp showing third starting electrode with bi-metal lock out, hidden in the picture by the resistor.

blue_halide.jpg UHP120W.jpg HQI.jpg HPI-T.jpg

Light Information

Light Information

Manufacturer:Osram
Model Reference:HQI-T
Electrical
Wattage:400w

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Filename:HQI.jpg
Album name:tuopeek / High Pressure Lamps
Keywords:Lamps
File Size:256 KB
Date added:Mar 07, 2015
Dimensions:2465 x 1838 pixels
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dor123
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Mar 07, 2015 at 10:33 AM Author: dor123
This is the Osram HQI-T 400W/N/SI Na-Sc probe-start MH lamp, which intended for MV ballast + two wires 750V ignitor, or an M59 ANSI ballast.
Here is the lamp in action .
This lamp may also be ignited and hot restrike directly from MV ballast with no ignitor.
I would be interested to see the hot restrike of this lamp with a MV ballast and a two wires 750V ignitor, as this voltage is higher than the OCV of the M59 ANSI ballast, so the lamp may restruck as soon as the bi-metal opens, without the appearance of the aux discharge between the aux and the main electrodes first.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

tolivac
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Jun 01, 2015 at 11:33 PM Author: tolivac
I have two 6K aquarium bulbsw sort of like the one shown-400W they will work on mercury or MH ballasts.The lamps are probe start with additional start circuitry consits of a bimetal switch,neon starter,and a capacitor(ceramic).
dor123
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Jun 02, 2015 at 04:00 AM Author: dor123
@tolivac: Probe-start MH lamps don't have any starter. I think that your 400W MH lamp, have an internal glow starter to make it a retrofit for MV ballasts. The bi-metal is to cut the starter out, after the lamp reached full regime.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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