ziggy1981

hi,
i have a 0.25kva 12volt back-boost transformer for landscape lights. there are 2 cables coming out for the transformer. one cable goes to driveway lights and the other one goes to 2 well lights(35watts) and 1 spot light (50w mr-16).
the problem im having is that 2 well lights keep burning out after a day or two. the spot light is not affected and is at the end of the circuit. i replaced all wiring between them and back to the transformer. still happening. tried different brands of bulbs. i removed a spot light from the crt. and 2well lights worked for a week. but then i reinstalled the spot light and they burnt out next day. the whole crt is 8' to 12' from the transformer.
any ideas?
please help

Fredman

Did you check voltage both line and load side - load applied - without etc..?

Dennis Alwon

Some transformers have a voltage choice. Obviously the lights closer to the trany must be getting more voltage than 12V. Try lengthening the wire and see if that helps.

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ziggy1981

it's a back-boost transformer and i cant adjust the voltage. lights used to work without any problems for 8-10 years. i will check the voltage with the load at each bulb.
thank you for your response