Well, if that is an athletic field they are illuminating (and it sure looks like one), they are most probably NOT mercury vapor lights but metal halides. The shape of the fixtures on the second photo is also a style used by MH luminaires. Only a site inspection will tell, and it's a 160 mile RT for me. Richard Harshaw Cave Creek, AZ "Remember: your mind works faster than you think." -----Original Message----- From: az-observing-bounce@xxxxxxxxxxxxx [mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Dan Heim Sent: Saturday, March 30, 2013 12:05 PM To: AZ Observing Subject: [AZ-Observing] still need that bulb ID Fellow Stargazers: Got a lot of good feedback from forum members that I'll be forwarding Monday to Ann Dunn, the lady in Buckeye with the light pollution issue. I'll leave out the more "destructive" solutions for those offensive bulbs, e.g., 22 caliber sky darkeners. :) I thank you all for your input. But I still need a volunteer to go out there and do a positive ID on those lights, which I strongly suspect are mercury vapor. Violation of ARS 49-7, if true, would open several additional options for a remedy. Ann says she'll provide soda and cookies for any volunteer. I'll wait for responses through this weekend, but need to wrap this up next week. If anybody can do this, email me off-list and I'll provide contact info and a location map. Many thanks. -Dan Heim -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.