![]() ![]() It is then a simple matter to look up SMD units and choose similar lumens. You will then have to look on E-Bay for that bulb and have a look at the specifications below the illustration to discover the lumens figure. This requires you to determine the wattage of the existing bulb. This is measured in the Kelvin unit, and is usually called the colour temperature.Ģ800 to 3000K is warm white, and 5000K and above is bright white. To translate the wattage into amps, divide the wattage figures by the voltage. the same brightness.Īn example of a Halogen bulb and an SMD unit is :. Generally, when changing a halogen in a caravan, choose an SMD of 90 – 110 lumens for approx. (Sometimes called LUX)Įven this simple way of determining the total light output is not plain sailing as all that, and there are many other factors to be considered to obtain an accurate figure, but, to keep it simple, when choosing any type of bulb or SMD unit, look at the lumens figure. ![]() The lumen is the measurement of the total light output from any type of light emitting device. This is a simple measurement of the light intensity as the human eye sees it. The best measurement of light output, and generally the accepted way, is the lumens measurement. How to measure the light output of a particular bulbĬomparing the wattage to determine light output from bulbs etc., is no longer valid. Noticeable by two pins sticking out of them. SMD is the relatively new type of LED with better performance all round than the 'old' type, which are They are usually a yellow colour in appearance. Basically, what this means is that the SMD is flush mounted on to the circuit board. SMD is the name for surface mounted diodes or a name similar. Usually, no modification is required whatsoever to the caravan wiring and no additional electronics are required, and as long as the SMD type is 12 volts, the change over should be - remove bulb and replace with the SMD unit. Staggering difference in power consumption - is it not? With 2 typical SMD units, only point 33 of an amp is used compared with 2 halogen bulbs which use up 1 point 6 amps, nearly 5 times as much!! On converstion to SMD units, I consume under 2 amps. With ALL my old normal bulb lights on, I would consume 11.83 amps. I usually go to CL sites without hook ups, and I changed all lights to SMD's to save battery power. Here .uk member P Baker gives his guide on converting the lighting in your caravan or motorhome ![]() An SMD LED also has a wide viewing angle, thanks to the fact that it does not have the standard LED's epoxy enclosure that focuses the beam. Specifically, it's a light-emitting diode that is mounted onto and soldered onto a circuit board. It also has a low voltage and current requirements. You can get more life out of each bulb and it is also energy efficient so it helps the environment, too. One of the main benefits to LED lighting is that it is more efficient. 90% less power than bulbs – for approx the same light output However as power consumption is an issue, more and more people are converting their lighting to LEDs. Most caravans and motorhomes are fitted with standard, fluorescent, or halogen bulbs for their lighting. Converting Caravan Bulbs to 12v SMD LEDs - .uk Articles Homeįeatures Index > Caravans and Caravanning Equipment > Converting Caravan Bulbs to 12v SMD LEDs Choose another section:
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