Delivered within 10 days. Tested on the cables from the engine works. With this product, the cons is connector is for plus and minus. It must be well fixed with a isolated tape or soldered wires as it loses contact and is not waterproof the connection
Light is not bad, but at 24V it is just 1.2W (P=24V*0.05A=1.2W). Starts to work normally from 7V, illuminance at 1m with 24V is 4440 LUX. Waterproof is zero, there is no sealant at all.