What type of lightbulb is this?


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Old 04-04-18, 01:51 PM
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What type of lightbulb is this?

What type of lightbulb is this?
 
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Old 04-04-18, 02:18 PM
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Cannot see the base..........................
 
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Old 04-04-18, 02:24 PM
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It says type b. Screw on type. Is this an incandescent?
 
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Old 04-04-18, 02:32 PM
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Looks like a high pressure sodium bulb to me.
 
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Old 04-04-18, 05:30 PM
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If it's not HPS it's gotta be a metal halide or mercury vapor.
 
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Old 04-04-18, 05:32 PM
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Wow. Never head of that. We have 8 of them in our exterior lights. Just moved in a few months ago.

What are their benefits? I’m thinking of switching to LED as a they go on sale super cheap this week.
 

Last edited by zhy987; 04-04-18 at 05:32 PM. Reason: Typo
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Old 04-04-18, 05:45 PM
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You need to 100% ID what you have before you put in LED bulbs. Look closely around the brass base for any writing. Also check the globe carefully. The writing will be hard to see.
 
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Old 04-04-18, 06:01 PM
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Iíll check tomorrow. Itís snowing like crazy now.

Is there a danger in switching to LED?

Pic from earlier today with partial writing on the socket.
 
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Old 04-04-18, 06:14 PM
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I think I see a filament inside the lamp. It might be a halogen lamp. Unless there is a remote ballast it will not be HPS or Metal halide. Take a meter and measure the voltage at the socket. If it is 120 volts then it is a standard incandescent lamp.
 
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Old 04-04-18, 06:32 PM
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A "B" series socket is a miniature socket. It looks like a filamented bulb inside an HID globe. I've never seen one like that before.
 
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Old 04-04-18, 08:14 PM
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It's just an ordinary blunt-tip candelabra lamp. Funny, I thought it resembled a HID lamp for a second too. Then I realized it was a halogen capsule and not an arc tube. The perspective is a bit confusing, making it appear like a larger bulb, due in part to the tip and base being cut off.
 
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Old 04-04-18, 08:21 PM
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Good find.

In that case... an LED type bulb could be used in there.
 
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Old 04-04-18, 08:24 PM
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A glass LED lamp like this would look nearly indistinguishable from incandescent/halogen.
 
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Old 04-05-18, 12:51 AM
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I never would have said HPS if I'd seen the second pic....just sayin'.
 
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Old 04-05-18, 05:47 AM
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Aw, guessing with only half the information is half the fun...
 
 

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