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Old 09-03-2012, 06:17 PM   #1
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12 volt lighting


we installed 12 volt medium base 15 watt fluorescent bulbs in our camp and they will burn only mins before they blow...any suggestions

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Old 09-03-2012, 06:44 PM   #2
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12 volt lighting


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we installed 12 volt medium base 15 watt fluorescent bulbs in our camp and they will burn only mins before they blow...any suggestions
How stable is the 12v supply ?

If its too high !

if it has spikes and surges on it !

what else is running off the 12v system ?

Or they are just crap quality lamps !

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Old 09-03-2012, 07:10 PM   #3
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12 volt lighting


Did you install the transformer to step down the voltage?
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Old 09-03-2012, 11:27 PM   #4
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Originally Posted by flhxfred View Post
we installed 12 volt medium base 15 watt fluorescent bulbs in our camp and they will burn only mins before they blow...any suggestions
I had the same problem. I used the garden Malibu light Transformer (44W capacity) and connect a 13W 12V(RV lights), CFL bulb to it, I had other 4W path accent lights but the total W is under 40W....
The CFL bulbs (in the Post lamp) lasted 2 nights only. It stormed the seconds night and it blew the CFL bulbs but not the other 4W "Malibu" lights.
I Have not buy another (Malibu) lamp post with 15W "malibu" bulbs (but they are not LEd nor CFL) and settle for a not so bright post lamp. No blown bulbs for 1 yr now...


Is the malibu transformer not suitable for these 12V (RV) CFL bulbs? Will this Malibu transformer wokr well woth LED bulb? (If I can find one that is bright enough That don;t cost an arm and leg!+
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Old 09-03-2012, 11:31 PM   #5
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12 volt lighting


Is the maliboo tranny electronic or iron cored ?
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Old 09-04-2012, 12:02 AM   #6
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12 volt lighting


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Is the maliboo tranny electronic or iron cored ?
don;t know exactly... It comes with the cheap Starter Kit (with 10x4W plastic landscape accent lights)..,. It doesn;t have digital read out. only photo sensor to turn it on/off.
hope this help?
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Old 09-04-2012, 12:33 AM   #7
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12 volt lighting


Your CFL's are most likely 12V DC.
Your Malibu transformer is 12V AC.
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Old 09-04-2012, 06:27 AM   #8
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12 volt lighting


This is a case where I think 12Vdc LED lighting is a better way to go.
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Old 09-04-2012, 07:02 AM   #9
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12 volt lighting


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Originally Posted by dmxtothemax View Post
How stable is the 12v supply ?

If its too high !

if it has spikes and surges on it !

what else is running off the 12v system ?

Or they are just crap quality lamps !

there is nothing else running off the 12 volt battery, we payed $7.00 fo for the bulbs not that nessary means they arent crap, is it safe to assume that a 12 volt battery is 12 volt or could it be higher??
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Old 09-04-2012, 08:19 AM   #10
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12 volt lighting


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Did you install the transformer to step down the voltage?


we are using a 12 volt battery
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Old 09-04-2012, 12:48 PM   #11
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12 volt lighting


Are the lamps reverse polarity protected ?
How many lamps did you install over what size and length of wire ?
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Old 09-04-2012, 04:49 PM   #12
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Are the lamps reverse polarity protected ?
How many lamps did you install over what size and length of wire ?

umm not sure on the reverse polarity.....5 lamps in 5 rooms 12 guage wire...no more then a 20 foot run I believe

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Old 09-04-2012, 06:37 PM   #13
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12 volt lighting


Do you run the lights at the same time as when you are charging the battery ?
Have you measured the voltage with all the lights on ?
If its a battery, too high a voltage is unlikely.
But low voltage could contribute to short life.
I would guess at this stage its just poor quality lamps !

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