The horn is an inductive load (meaning any switch or relay has to deal with a big spark each time the horn button is released). The headlights are a pure resistive load, which is the easiest thing to switch. All cars use a relay for the horn switching for this reason. Dick Benjamin -----Original Message----- From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Rob van der Es Sent: Thursday, July 28, 2005 11:00 AM To: mailing-list@xxxxxxxxxxxxxxxx Subject: RE: IML: Head Lights at Steve B. Very strange that the factory did use a relay for the horns, but not for the headlights. I wonder why ? Robert 1960 Imperial Crown 4 door HT > You can get the halogen version of your lights off the shelf at most any > auto parts store. You might consider adding a headlight relay if you are > going to change the bulb type. Adding the relay will give you brighter > lights by avoiding the voltage drop of the existing wiring and switch and > also remove the load from your head light switch that is difficult to > replace. The bad side of adding the relay would be that the draw of the > headlights would no longer be reflected on your amp gauge on the dash and > could cause it to not alert you if you have charging system problems. > > > > Steve B. > > > > > > > > -- > > > Checked by AVG Anti-Virus. > Version: 7.0.338 / Virus Database: 267.9.4/57 - Release Date: 7/22/2005 > > > ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm