I have a Delco 10SI Alternator fitted in my truck. I would like to use a 12v LED as the warning light on the dashboard, has anyone tried this, and did it work, or will I have to use a conventional lamp to connect to the F terminal on the Alternator?

Thanks, Stuart.

1950 Chevrolet 3100 (occasionally working) truck:https://c2.staticflickr.com/6/5490/30684982201_6dc479d18d_c.jpg
1928 Chevrolet AB National Phaeton: https://c4.staticflickr.com/6/5573/30137792083_42886d30a4_c.jpg
1932 Austin Special Sports: https://c8.staticflickr.com/6/5793/30116567183_1520e67c4d_z.jpg