I saved this information that Mike S posted last year:

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Rear BU/Stop/Turn BA15s - Single Contact Candelabra Bayonet Stock P21W 21W
32 cp
US    1073 23W 32 cp 200 hours
US    1156 27W 32 cp 1200 hours
+.5   2396 29W 40 cp 400 hours
+1    1295 38W 50 cp 300 hours
+2    795  50W 108 cp - may melt lens with constant use

Tail - BA15s - Single Contact Candelabra Bayonet Stock  P5W 5W  3 cp
US     67  8W  4 cp
+1     89  8W  6 cp
+2     93  13W 15 cp 700 hours - I've been running these without issue

Front running/turn -  BAY15d - Double Contact Index Bayonet Stock P21/5W
21/8W 32/3 cp
US    1034   23/8W 32/3 cp 200/5000 hours
US    1157   27/8W 32/3 cp 1200/5000 hours
+1    P3496  27/8W claimed 45% brighter
+2    H1157  50/15W ??? - may melt lens?
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toodle pip,
--
       Dug Smith         | Motorcycles don't hurt
(mailto:dug@dugbert.com) |  people.  Guardrails
(http://www.dugbert.com) |  hurt people.