65 Watt Fluorescent Yard Light had a mishap

[sam_sam_sam]

I came home last night and the Fluorescent tube was only lighting on one end and not the other end what happen here---------->

I found one film cap that had spilled it guts out one end of the cap this is not a good site to see

The marking on the cap is 104k the cap that the mishap
Of course this cap had no reading at all
The other cap marked .1uf this cap reads .1uf with an ESR of 17

I had an another board from the same model yard lamp with same board number that too many mosfet mishap that I take parts off of

The same value cap had a ESR reading of 15
but the 68uf@400 volt cap the ESR value was real bad compared to the other cap on the other board

One note you see where is says 240 volts AC if you run it at that voltage it might last 4 months before it fries the mosfets
I run it at 120 volts instead and do not have the trouble with the mosfets shorting out and tripping 3 amp breaker that I put inside the lamp

This unit goes in a 175 watt mercury vapor Yard light I use in the same fixture but took out the transformer that boost the voltage up to the voltage to fire the mercury vapor lamp

[japlytic]

Re: 65 Watt Fluorescent Yard Light had a mishap

I've had a number of electronic fluorescent ballasts fail on us, two of them with a bang.
Upon opening, most of the film capacitors were found to be discoloured, meaning that they have had a hard life.