The six small Speedheaterâ„¢Cobra infrared bulbs are permanently mounted in two ceramic end blocks as one module. The life expectancy of the bulbs is 5,000 hours.
Extra care should be taken to not drop or bang the Cobra. If one bulb cracks, the entire module must be replaced.
There is no gas inside the bulbs.
The wire filament inside each bulb is fragile.
If one of the six bulbs cracks, Cobra use should be stopped immediately. While the bulb may continue to heat, using the tool with damaged bulbs will damage the Cobra permanently.