Beautiful! If The code system is the same as Westinghouse's, "GZ" SHOULD be July 1988, which sounds about right I guess. I think the following year Cooper reverted to just using the current WW-YYYY method. That same year GE did the same thing, ditching the two-letter code for the WW-YYYY format.
I'm surprised that the PC socket isn't recessed into the housing like with other Cooper lights. My OVC is like that. Not sure about the OVS though. The OVC was introduced after the OVS and OVM. The OVC used the current reflector while the OVS still used the OV-15 reflector.
neat fixture,these OVM's are common as dirt in my hometown,ive seen these in HPS and Mercury versions and I think they look pretty good in either forum.....are these as well as other Cooper Mid-Size fixtures evolved forms of the OV25?
I think the OVS and OVM are just as good as the old Westinghouse products. Afteralll, they use all the same parts as an L-150 or L-250, just a different housing. I think cooper's OVC/OVS/OVM generation and the current generation overlapped for some time before they discontinued the OVC/S/M. I saw OVMs online from 1995 yet I've seen OVXs from 1991...
My Cooper OVC from 1990 is pretty decent quality but it's more "Cooperized" than the OVS or OVM. The OVC was introduced as a lower-cost compact light to encourage the HPS changeout. It was made in 35-150W HPS and 100-175W MV. Then they introduced the OVZ to replace it which accepted up to 250W lamps. The OVX replaced the OVS, and the OVF/OVY/OVD replaced the OVM. Anyway, back to my OVC being Cooperized, the OVC was the first light to use the current round plastic lens and reflector with the two circles on it. The OVS still used the square plastic refractor and old OV-15 reflector.
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I'm surprised that the PC socket isn't recessed into the housing like with other Cooper lights. My OVC is like that. Not sure about the OVS though. The OVC was introduced after the OVS and OVM. The OVC used the current reflector while the OVS still used the OV-15 reflector.
My Cooper OVC from 1990 is pretty decent quality but it's more "Cooperized" than the OVS or OVM. The OVC was introduced as a lower-cost compact light to encourage the HPS changeout. It was made in 35-150W HPS and 100-175W MV. Then they introduced the OVZ to replace it which accepted up to 250W lamps. The OVX replaced the OVS, and the OVF/OVY/OVD replaced the OVM. Anyway, back to my OVC being Cooperized, the OVC was the first light to use the current round plastic lens and reflector with the two circles on it. The OVS still used the square plastic refractor and old OV-15 reflector.