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Please note that the HIR Technology is old and there is no need to coat the bulbs with an HIR coating to achieve the same results.
The HIR bulbs are not some tinted or over-wattage version of 9005 or 9006, but
rather employ a relatively new technology called HIR, Halogen Infrared.
The mechanical dimensions of the bulb are all virtually identical to the
9005 or 9006, but the bulb glass is spherical instead of tubular, with the sphere
centered around the filament. There is a "Durable IR Reflective" coating
on the spherical glass. Infrared = heat, so the coating causes heat to be
reflected back to the filament at the center of the sphere. This causes
the filament to become much hotter (producing more light) than it can by
passing electricity through it, *without* the shorter life or greater heat
production that comes with over-wattage bulbs (to say nothing of
over-wattage bulbs' incompatibility with stock wiring.)
Here's the comparison:
Hi Beam stock: 9005, 12.8V, 65W, 1700 lumens, 320 hours /
Hi Beam ... HIR1(9011), 12.8V, 65W, 2530 lumens, 400 hours
Lo Beam stock: 9006, 12.8V, 55W, 1006 lumens, 360 hours /
Lo Beam ... HIR2(9012), 12.8V, 55W, 1875 lumens, 1000 hours
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