It's still a thing in Poland. They are either sold as heatballs or workshop light (doesn't have strobe effect which could be potentially dangerous around saws).

It's still a thing in Poland. They are either sold as heatballs or workshop light (doesn't have strobe effect which could be potentially dangerous around saws). That was mostly when fluorescent lightbulbs were the only alternative. These days people go for LED lightbulbs instead.