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techtalk:evo:elec03 [2019/08/02 04:43] ixl2relax [Single-fire Ignition To Dual-fire Tachometer Adapter] |
techtalk:evo:elec03 [2019/08/25 05:34] ixl2relax [Headlight] |
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| ===== Headlight ===== | ===== Headlight ===== | ||
| - | Early model Sportsters (1990-older) used a sealed-beam, 5-3/4" headlamp. In 1991, they were supplied with a headlamp lense (bulb housing) which uses a replaceable bulb known as an H4 version. The supplied bulbs were rated at 55w for low beam and 60w for high beam. Modern bulb model 9003 is also physically equivalent. Various brands and types of H4 bulbs are available including new LED versions. Not all LED units are sized the same so some testing of the physical depth (both inside the lense and behind the lense) is necessary to proper fitting. | + | Early model Sportsters (1990-older) used a sealed-beam, 5-3/4" headlamp. In 1991, they were supplied with a headlamp lens (bulb housing) which uses a replaceable bulb known as an H4 version. The supplied bulbs were rated at 55w for low beam and 60w for high beam. Modern bulb model 9003 is also physically equivalent. Various brands and types of H4 bulbs are available including new LED versions. Not all LED units are sized the same so some testing of the physical depth (both inside the lens and behind the lens) is necessary to proper fitting. |
| The low beam usually throws a narrow light, a relatively short distance. The high beam is a broader beam and is redirected (by the reflector) to throw light farther down the roadway. | The low beam usually throws a narrow light, a relatively short distance. The high beam is a broader beam and is redirected (by the reflector) to throw light farther down the roadway. | ||
