Author Topic: What drives these bulbs  (Read 885 times)

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Offline LaserTazerPhaserTopic starter

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What drives these bulbs
« on: September 27, 2019, 07:01:57 pm »
Is it made for constant current drivers?

Filament resistance varies greatly with heat. https://www.aliexpress.com/item/1000007073211.html
 

Offline iMo

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Re: What drives these bulbs
« Reply #1 on: September 27, 2019, 07:11:48 pm »
Read the reviews on that page..
Readers discretion is advised..
 

Offline LaserTazerPhaserTopic starter

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Re: What drives these bulbs
« Reply #2 on: September 27, 2019, 08:13:51 pm »
They don't mention driving =>4 bulbs.
 

Offline Jwillis

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Re: What drives these bulbs
« Reply #3 on: September 28, 2019, 12:40:08 am »
Got a kick out of the ozone smell complaints.  Ultraviolet light disrupts oxygen O2 molecules to create valent oxygen atoms that attach to other oxygen molecules to create  O3 or ozone. Just thought it was funny.
 

Offline amyk

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Re: What drives these bulbs
« Reply #4 on: September 28, 2019, 02:04:09 am »
bigclivedotcom has a video on these:
 

Offline james_s

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Re: What drives these bulbs
« Reply #5 on: September 28, 2019, 04:02:21 am »
They use either a capacitor or a resistor to limit the current. The filament is only used for starting, then the mercury vaporizes and the arc shunts re filament.
 


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