It depends if the lamp is designed with vacuum vs gas (and then exactly which gas) filled outer.
With vacuum (lower power, ceramic,...), it quite makes sense to use there...
1 Lamps / Modern / Re: Why do some metal halide lamps have barium getters? on: Today at 04:56:16 AM | |||
Started by WorldwideHIDCollectorUSA - Last post by Medved | |||
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2 General / Off-Topic / Re: Any UK members ever heard of their place names being mispronounced by Americans? on: Today at 12:11:27 AM | |||
Started by WorldwideHIDCollectorUSA - Last post by Maxim | |||
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3 Lamps / Modern / Why do some metal halide lamps have barium getters? on: May 12, 2024, 10:46:01 PM | |||
Started by WorldwideHIDCollectorUSA - Last post by WorldwideHIDCollectorUSA | |||
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4 General / General Discussion / Re: Favorite magnetic HID ballast topology? on: May 12, 2024, 10:11:35 PM | |||
Started by WorldwideHIDCollectorUSA - Last post by fluorescent lover 40 | |||
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5 General / General Discussion / Favorite magnetic HID ballast topology? on: May 12, 2024, 10:01:20 PM | |||
Started by WorldwideHIDCollectorUSA - Last post by WorldwideHIDCollectorUSA | |||
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6 General / Off-Topic / Re: What did you do today NOT lighting wise on: May 12, 2024, 07:51:00 PM | |||
Started by Bulbman256 - Last post by Cole D. | |||
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7 General / General Discussion / Re: My Metal Halides Have Been Flashy Today on: May 12, 2024, 03:56:25 PM | |||
Started by suzukir122 - Last post by suzukir122 | |||
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8 General / Off-Topic / Re: What did you do today NOT lighting wise on: May 12, 2024, 03:55:58 PM | |||
Started by Bulbman256 - Last post by BT25 | |||
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9 General / Off-Topic / Re: What did you do today NOT lighting wise on: May 12, 2024, 03:49:26 PM | |||
Started by Bulbman256 - Last post by suzukir122 | |||
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10 Lanterns/Fixtures / Modern / Re: Why do so many people dislike 3000K halophosphate warm white fluorescent lamps? on: May 12, 2024, 03:36:17 PM | |||
Started by WorldwideHIDCollectorUSA - Last post by suzukir122 | |||
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