Replacing a blown CFL's tube.

In this Instructable, I will guide you to replacing a blown tube in a CFL. Unfortunatly due to poor standards in safety in manufacturing, when the tube blows, it is likely to also blow the electronic ballast, so hopefully you won't have a dud ballast + bulb like mine. (Maybe it isn't a dud, maybe the connections are just dirty, who knows.)

Disclaimer:
This Instructable involves you playing with mains electricity, lead and minute amounts of mercury, which you shouldn't be exposed to unless you break the fluorescent tube. If you dislike either risk, I recommend you go and do something less scary, because I take no responsibility for any injuries, deaths, or people becoming stoopid.

This is probably also a fire hazard, because mains electricity is real good at messing up your whole day if you do something wrong

Step 1 Gather parts/tools

Parts:
* 2 CFL's. One with a blown tube, and another with a blown electronic ballast (preferrably of the same type) or even just a good tube without the electronic ballast

Tools:
For this Instructable, you will need a minimal amount of tools:
* A flat-headed screwdriver
* A pair of pliers (needle nose pliers are preferred)

Comments

[Machine]

You should know that in those compact fluorescents there is tiny amounts of mercury which if it escapes due to broken glass falls to the floor/carpet and stays there, all the time evaporating at room temperature.

Take care not to break the glass.

I would throw the bulbs and not try to remove anything in case the bulb breaks. Put the bulb in a bag and put it somewhere it can be safe.

[thermoelectric]

I'm not too worried about the mercury from the bulbs, I keep them in a box on my shelf, although if I ever do break one, I make sure to let my room air out a bit.

[jakdedert]

It's also worth noting that the ballast is a good source for spare parts, as long as you ascertain whether they are still good. The high voltage capacitors are good for tube electronics, and the remaining pieces can also be used in other projects. I usually salvage most of the parts. Also, the base itself is good for making LED lights with suitable homebrew circuitry...much simpler than a CFL ballast.

[watch81]

Maybe your second blub was blown as well.. ? This would be good if the base went on you and the bulb on another.. nice little project

[thermoelectric]

It is possible that the second tube was blown.

[rickharris]

For the prices these are now is this worth the effort and risk??

[thermoelectric]

Most likely not. The main reason I done it was because I had the same 2 tubes, and also because I was bored. It also didn't even work in the end, so, it is most likely unneccessary to do this...