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Prudent RVer Info on
Incandescent Bulbs Using the BA15d Base

The BA15d type bulbs come with an electrically neutral 15mm diameter bayonet base, symmetric ears, and two contacts for the positive and ground connections. Typical 12-volt bulb numbers are 68, 90, 94, 1004, 1076, and 1142. The following generic information comes from donsbulbs.com

Bulb volts amps watts design life lumens length uses
68 - miniature 13.5 0.59 7.97 5000 hrs 1.44 in side, tag lamp
90 - miniature 13.0 0.58 7.54   750 hrs 1.44 in marine lamp
94 12.8 1.04 13.3   500 hrs 189 2.0 in marine lamp
1004 - miniature 12.8 0.94 12.0   200 hrs 1.75 in marine lamp
1076 12.8 1.8 23.0   200 hrs 402 2.0 in flasher lamp - hot
1142 12.8 1.44 18.4 1000 hrs 264 2.0 in interior lamp