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[Exspiravit]

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[fieldgrade]

I worked for Sylvania a lifetime ago. A LOT has changed, but that looks like it runs off a ballast, like a high-bay light would at Lowe's, in a gym or an older street light.

For the $32 price I’d just replace that bulb, althought the ballast can eventually fail also.

 

[noway2]

A LOT has changed, but that looks like it runs off a ballast,

The spec sheet said it runs at 103 volts, so I think your right.

 

[NCFubar]

I worked for Sylvania a lifetime ago. A LOT has changed, but that looks like it runs off a ballast, like a high-bay light would at Lowe's, in a gym or an older street light.

For the $32 price I’d just replace that bulb, althought the ballast can eventually fail also.

Yes, the require a ballast which is around $50 if it’s bad. As to need of a ballast it’s BIGGEST thing is start up ... that bulb burns damn bright and hot ... it basically plasma. To start off it actually “warms up” to operating level/temperature gradually. If that lamp loses power it won’t immediately come back on either. That ballast cycles thru a cool down and then restarts the lamp again ... maybe 10 minutes or so to go thru the restart so it’s not like a regular incondescent bulb more like a slooooooow fluorescent bulb start.