Those lights look identical to mine, and judging by the questions asked at the bottom of the page, they are. I've got a handlebar mounted switch and each time you turn the lights on and off, it cycles into the next mode. (Hi / Lo / Strobe). Bit of a nuisance, but no real issue. Just before I switch the bike off I switch the lights on and off twice, so the next time I turn them on, it comes onto hi beam. There's a link on a thread in the accessories forum about soldering inside the lamp to disable the lo & strobe modes, but given this was my first 'proper' electrical job, I'll leave them alone and live with cycling through the modes....