1000w Halides
Comparing some of the 1kW metal halide lamps in my collection.

From top to bottom:

Philips HPI-T Pro.  4300k, 65% CRI, 85,000lm, 12,000h.
GE SPL-T.           6000k, 93% CRI, 80,000lm, 8000h.
Venture HIT EURO.   4000k, 68% CRI, 90,000lm, 8000h.
Osram HQI-T.        7250k. 90% CRI, 85,000lm. 9000h.
Radium HRI-T.       7250k, 85% CRI, 85,000lm, 9000h.

1000w Halides

Comparing some of the 1kW metal halide lamps in my collection.

From top to bottom:

Philips HPI-T Pro. 4300k, 65% CRI, 85,000lm, 12,000h.
GE SPL-T. 6000k, 93% CRI, 80,000lm, 8000h.
Venture HIT EURO. 4000k, 68% CRI, 90,000lm, 8000h.
Osram HQI-T. 7250k. 90% CRI, 85,000lm. 9000h.
Radium HRI-T. 7250k, 85% CRI, 85,000lm, 9000h.

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Comment 1 to 3 of 3
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Andy   [06 Apr, 2022 at 11:27 AM]
That's a lovely lineup! Did you use the same ballast and ignitor setup to light each one? The variation in style, shape and size of the lamps makes me wonder if they are all of the same electrical spec.
FrontSideBus   [06 Apr, 2022 at 12:24 PM]
The Philips and Venture are for Merc gear. But to complicate things even more, the Philips will strike on a 750v SI52 whereas the Venture needs a 3.5kv superimposed thing!
Andy   [07 Apr, 2022 at 08:30 PM]
I've now ordered one of those Philips HPI-T lamps so will try an SI52 with it.

Comment 1 to 3 of 3
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