Hello everyone, I want to change my interior lamps in my van to LED lamps but can't find the transformer. I've got a swift challenger 530 2007 model. Does anyone know were it would be situated in the van. Thanks
Led lights
- Thread starter richard_374410045
- Start date
Aren't they mainly a 1:1,swop? My transformer sits behind the consumer unit but Swift may be different.
I thought that but just blows the LED lamp so think I may need to change the transformer to a driver for the LED lamp
Are you trying to replace the 12V lamps or the mains lamps? Just to put a little more meat into my answer/question, Caravans typically have two types of electrical circuits. There is a mains 230V power circuit and 12Vdc circuits. The 230V circuit is only active when you are connected to and EHU. But the 12Vdc circuit can be available when towing or on site provided you have a battery fitted. Post 1987 caravans are not fitted with a simple battery charger, they have a more complex 13.8Vdc power supply, which has the dual purpose of allowing some 12V items to be run with or without a battery connected. There is an important and significant difference between a simple Battery charger and a Power supply. Most simple "battery chargers" are un smoothed half or full rectified outputs, where the voltage swings from 0V to about + 25V (no load) either 50 or 100 times a second. This can disturb some electronic appliances. By connecting a battery, the output changes and now you have the battery voltage as a minimum value but you can get some ripple (more like a saw tooth) with peaks up to about 21V. Again for some electronic components this can be a problem. a caravan "Power supply" is different in that it includes both smoothing and regulating components which means the supply will give a smooth constant 13.8V dc out across its power range. Most electronic appliances will not be able to detect the difference between this and a battery. Such supplies are also used to keep the caravan battery charged. 13.8V is chosen as a reasonable compromise between maintaining an adequate battery charge, but not allowing excessive gassing off. Your 12V LED lighting should be more than happy with 12V supplies in your caravan. If you are 'blowing LED lamps, then I suggest you double check any polarity requirements the bulbs may have. If its 230V lighting you are replacing, you can get LED lamps that are designed for direct connection to 230V mains. Or some LED lighting systems do need a 230V to 12V concverter. You need to double check what you have been supplied with. Its very unlikely you will need to change the "transformer" as that is an integral component part of the power supply, and not available to change by the consumer.
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