took my 68 fleetwood 75 out for the first time for months and when I drove it back that night to the shop where I keep it stored the gen light was half glowing It might have been on when I took the car out but it was day light and I saw it when it was dark when I got to the shop turning off the head lights and rev up the motor did not help I have notice that the head lights flicker lighter and darker, I have had grandkids over sence parking it on friday and have not had a chance to check anything out yet, any ideas thanks