Gen 1 LED Running light question

[Fazerjon]

Hi people, I’m planning on installing 2 10watt LED running lights to my Gen 1 thou. I’ve read various threads on the forum regarding wiring. Some use a relay and a switch and some go straight from the battery. I’m wondering if I splice into my headlight dipped beam wire with both spotlights and then earth, (doing away with the need for a switch or relay) will I need to uprate the fuse for the lighting circuit? They are only 10w LED’s and although very bright I don’t think they draw much current.