Marpan Supply Company, Inc.  
high pressure sodium

 high pressure sodium
 lumalux, unalux, & sox
ET23.5 & ET18 - Plus/ECO are non-cycling, environ- mentally friendler lamps are designed with lead-free, welded mogul bases and they contain significantly less mercury and standard high pressure sodium lamps and pass the existing federal TCLP limits (based on NEMA LL series standards), clear bulb finish, 50 to 400 watts. ET23.5  - HgF/ECO are lumalux mercury-free lamps that incorporate the latest technology to eliminate both mercury and lead allowing them to pass the federal TCLP test (based on NEMA LL series standards), clear bulb finish, 70, 100 & 150 watts.
E, ET, BT & T - standard lumalux and lumalux/eco are available in a broad range of wattages, both clear and coated configurations, are ideal for a variety of applications, medium based lamps are available in wattages ranging from 35 to 150 while mogul based lamps are offered in 50 to 1000 watts, the mogul based lumalux/eco lamps pass the federal TCLP test (based on NEMA LL series standards). E, ET, BT, & T - lumalux standby lamps have a dual arc tube for instant restrike, long life, unalux are retrofit lamps designed to operate on mercury reactor ballasts when increased light and reduced energy is desired, sox lamps emit a characteristic yellow light that is ideal for certain exterior street and area lighting.
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High Intensity
Discharge Lamps