I have two Whelen Micro Grille Master strobe lights that were installed for 1 year about 3 years ago in my personal vehicle. I want to put them in my new patrol car when I take a job with a different agency that will allow that. The lenses from Galls are about $20.00 each, and I was wondering if anybody's got a source that might be cheaper. Checked sirennet.com, but I don't know what "lighthead series" these particular lights are. I've got red lenses if anyone has blue and would like to trade.