Yes, reversing motor, power applied it opens, power removed it closes, the other turns on/off the light.
I had 1 in my POV/Response car for several years it was wicked attention-getting when activated.
What ChiefOps, Stampeed said.. Two leads one for light, one for motor that operates the shield. Power on light and shield lifts, power off light goes off shield closes automatically...
The primary intended market for these lights were unmarked emergency vehicles, the light was mounted to the front headliner in front of or adjacent to the rr view mirror or on the rear deck, the motorized cover concealed the colored lens when light was not in use.
The light was factory steady burn but could be configured with a flasher.
Here is a nice piece of trivia for you.... (The attached image is an EES Coplite motorized mirror light. The description below is from an auction for one of the EES motorized lights.)
VINTAGE EES CopLite MOTORIZED MIRROR LIGHT SAME AS FEDERAL SIGNAL MML1-FD
This is a like new piece of equipment. It was installed in my equipment demonstrator vehicle briefly but has seen no real use. Comes with brand new bracket for 1998 and up to ? Ford Crown Victoria headliners. I have tested it and it works perfectly. This light is one of the neatest ideas ever and is now a true collectors item. It is left over inventory from my now closed business.
The back story: EES CopLite thought that the motorized fog lights made by IPF of Japan (these used to be found in the JC Whitney catalog back in the 80's) would work perfectly as a covert interior warning light that met California Title 13 specifications. It worked! Then Federal Signal started copying it and call it MML1.
Installation requires removal of the inside rear view mirror (and mounting tab on windshield by using a heat gun, if you wish), mounting the vehicle specific headliner bracket and then attaching the rear view mirror and light to the bracket. The 55 watt H-3 bulb cuts through the windshield tint flawlessly. Some agencies would even add an "eyebrow" tint to the top of the windshield for an even more covert appearance. Do not use a 100 watt H-3 bulb as the heat produced will damage the motor. These lights were also commonly mounted to the rear parcel shelf in a vehicle.
Please see my other items!
WARNING: It is the buyer's responsibility to know whether or not they may legally purchase, legally posses or legally use this equipment. Seller is not responsible or liable for the buyer's actions involving this equipment.