ROBERTSON 3P10058 Individual mHID, 70 Watt, S62 High Pressure Sodium Lamp, 120Vac., 60Hz, Normal Ballast Factor, NPF, Model BLU0070A04900 M (Replaces Model BLU070A04900) Equivalent to Philips-Advance 71A7907, Osram LU70/120R, Universal 1233142U0003 Equivalent to Keystone HPS-70R-1, Hatch GS70ARNCK Save by ordering the Quik-Pak of 4 individually packaged ROBERTSON units 2P10058 Take advantage of Robertson's 60 years of electronic design and quality manufacturing experience. Go to RobertsonDirect.com for complete technical data.