I've never had any problems with them I've been using them for the last 7 years also using them for my camping battery charging via a relay never drain the batteries on any of the vehicles even when I've been on holiday for 28 days vehicles always start no problems.The fuel pump fuse is in the engine bay, so there’s no need to go through the bulkhead and I dislike the delay while those drl controllers run the battery down.
They come on at 13volts as soon as the engine starts it will reach that instantly and they take 15 seconds to switch off handy at night if you're in a dark place.
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