Xenarc HID (high-intensity-discharge) sealed-beam headlamp kits from Osram Sylvania's Automotive Lighting Div. offer direct replacements for a heavy-duty vehicle's standard sealed-beam lamps in both two- and four-lamp systems. They produce a more intense, high-color temperature (white) light, and provide three times the light output and nearly ten times the service life of standard halogen headlamps. Xenarc HID auxiliary low-beam lamp kits are also available. www.sylvania.com
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