door scuff plates led moving

[bigdom1957]

hi all ive have seen there are scuff plates /step guards for mercedes ,wireless moving led , peel off original scuff plate and the new ones are magnetic, theres a magnet that goes under door so every time you open shut it shuts of led,s but i cant find them ,you can see them on youtube but no addresses, all seem to be a wired into loom job , i think its an american thing , looks like all suppliers come from china and korea , anyone got any ideas , i have done the door card reflector lights which illuminate merc sign to ground but dont fancy wireing into loom for power if i send for them ,prefer battery sills , bye