I just replaced 10-1000watt MV for a customer of mine. Local supply house wanted $130 a bulb. "Hard to come by because they are becoming obsolete" was his remark. Found them on internet for $20 bucks a piece. Was also told by same supply house R30 75 watt bulbs(for recessed cans) were not going to be available much longer. 65 watt would be highest I could install. Who knows who to believe.
