I would like to replace the two incandescent bulbs in this Weaver caboose with led bulbs. As you see, the incandescent bulbs fit into a white lamp base that has a two-wire connection to the track pickups. That white lamp base uses a Christmas light style bayonet bulb which I want to replace with a LED bulb with appropriate rectification. Your help locating that equivalent led replacement bulb and supplier is appreciated. Thanks.