Plum
Well-Known Member
Back in January I bought a new lifebuoy and MOB Light set. The light was an incandescent type bulb with 4 X D2 batteries.

When ON the light flashed, although his function was not mentioned in the product description. I tested it a month later but the light did not work and discovered the batteries were flat. On investigation I discovered the batteries were being drained even when the light was OFF. The current drain (about 5mA) was pulsing in time with the flash rate, even though the light was not illuminating, so there was a fault, or a poor design, with the flash module. Rather than send it back, I have removed the flash module and it works perfectly with no current drain when OFF. I also replaced the incandescent bulb with an LED.
Picture of flash module:-
If you have the same light, when you can, do check it still works before you need it in anger.
www.solocoastalsailing.co.uk

When ON the light flashed, although his function was not mentioned in the product description. I tested it a month later but the light did not work and discovered the batteries were flat. On investigation I discovered the batteries were being drained even when the light was OFF. The current drain (about 5mA) was pulsing in time with the flash rate, even though the light was not illuminating, so there was a fault, or a poor design, with the flash module. Rather than send it back, I have removed the flash module and it works perfectly with no current drain when OFF. I also replaced the incandescent bulb with an LED.
Picture of flash module:-

If you have the same light, when you can, do check it still works before you need it in anger.
www.solocoastalsailing.co.uk
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