View Full Version : fluorecent tubes in fridge/freezers

28-05-2004, 09:10 AM
hi all,

can anyone tell me if there is a special type of fluro tube required for a fridges and freezers? do regulars ones ignite okay under these temps? if not, what is the type of tube i need?

28-05-2004, 11:31 AM
hi slothslag,

in cold stores down to 0C there should not be any problems with fluorescent lamps ie all components are ok.

in freezers if you insist of using fluorescent light, you need special electronic starters.

why not use regular 240 bulbs in a water sealed housing ano starting problems.


28-05-2004, 11:35 AM
here is a link to danfoss electronic ballasts



Jus Walker
28-08-2005, 05:08 PM
Yes electronic starters. Green starters. But make sure the defusser is sealed correctly.

28-08-2005, 08:01 PM
Even with electronic starters, ignition is not the problem but it takes quit some time before the lamp reaches it's full lighting capacity (5 minutes at least)
So if you switch off the lights each time you leave the freezer, then you should better install regular lamps like Chemi said.
We allways install regular lamps, unless they are kept on the whole day.

28-08-2005, 11:29 PM

you need 100 watt rough service lamps these last longer in the sealed units far better than fluorescent lights


24-11-2005, 08:54 AM
Yes electronic starters. Green starters. But make sure the defusser is sealed correctly.

Just make sure it is not sealed air tight
other wise you will find that it will produce ice inside the diffuser, when the temp rises this will melt causing
spoilage inside the case.

A bit of thumb gum in the bores at either end of the tube
should be fine

cut your diffuser , fit , but do not seal around it.

you will need an electronic ballast
this should do away with the starter.

we fit standard tubes to our cases , yes it takes 5 minutes for them to reach full illumination, but they are brilliant, these are fitted to freezers that have a set point of -25 degrees celcius.

Hope this helps !

24-11-2005, 12:49 PM
Here we use GE CWHO (High Output) 6 footed tube, bright & lasting for walk-in chillers.