i added a light to my 915b. i wanted to be able to put it on the tractor when needed for the occasional night time snow removal. so…. i got a 45 watt magnetically mounted led and added a fused two prong connector to the battery to supply power on the zturn. (i also use the connector for the battery tender.) i power it from the 12v socket on the tractor. the setup cost about $60, including light, switches, and connectors.