Deluxe White Prolume Mercury Vapor Lamps  (Clear also available) Watts Lamp Type Hours Base Case Size Unit Price with Case Purchase Unit Price with 2 case total order 50 MV/DX50 /Med/E17 10000 Med Screw 12 $5.28 $4.84                        75 MV/DX75 /Med/E17 12000 Med Screw 12 $9.13 $8.79 100 MV/DX100 /Med/E17 16000 Med Screw 12 $9.13 $8.79 100 MV/DX100 /Mog/E24 24000 Mogul Screw 12 $8.03 $8.51 175 MV/DX175 /Mog/ED28 24000 Mogul Screw 12 $7.85 $7.85 250 MV/DX250 /Mog/ED28 24000 Mogul Screw 12 $8.15 $7.85 400 MV/DX400 /Mog/ED37 24000 Mogul Screw 12 $12.46 $11.98 1000 MV/DX1000 /Mog/BT37 24000 Mogul Screw 12 $33.32 $31.66