Stanley:

For higher voltage applications where you want to get a bunch of light out of an LED it may be appropriate to look at a type of component called an "incandescent replacement lamp". These are designed for use in circuits where direct connection across a higher voltage is the normal way to use the part. They are very efficient becasue they contain multi-LED arrays. Typical applicable voltages that are available are 12, 24 and 28 volts. Click on the logo below to see the data sheet for one selection of this type of lamp.



These parts put out a lot of light for just 7 to 14 mA.

Some LED App Note Data

Michael Karas