Lighting Information








How are fog lights mounted?  Normally under the front bumper about 10-24 inches from the ground.  There are two important issues to address:  to minimize the amount of return glare into the driver's eyes, and to minimize glare into oncoming driver's eyes.  Both must be accomplished while putting as much light as possible on the road.  Visual aim is made with the top of the beam 4 inches below the lamp center at 25 feet with the lamp facing straight forward.

How are driving lights mounted?  Normally above the front bumper about 14-30 inches from the ground to provide extra high beam illumination.  They can be mounted under the bumper, but effectiveness might be compromised because the light will hit the ground sooner and reduce the range of the light.  Visual aim is made with the center of the beam hot spot 1.5 inches below the lamp center at 25 feet with the lamp facing straight forward.

How easy is it to install PIAA lights?  You don't have to be an automotive electrician to install PIAA light kits.  First, all PIAA light kits come complete with a pre-assembled wiring harness which includes relay, fuse, and switch.  Second, PIAA offers a wide range of mounting kits designed to ease installation of your PIAA lighting system.  Mounting kits come complete with everything you need to make your installation almost effortless.  The use of PIAA mounting kits ensure a professional looking installation you can be proud of.

Can I mount my lights upside down?  Yes, PIAA lights are designed to function properly mounted upright or upside down.  A few details need to be taken into consideration.  When mounting your PIAA lamps opposite of their intended installation, remember that lights with a "Snorkel" type wiring grommet in the back of the housing must have the opening facing down.  Also, the PIAA name must read right side up so the vent on the bottom can drain.  90 Pro lights have a vent on the back of the housing in the center.  The opening must be facing down.  Proper auxiliary lamp aiming is the most important part of an installation.  Refer to the light aiming instructions above for proper alignment.

What is dichroic?  This is a glass reflector and bulb assembly designed to dissipate heat through the reflector, away from the bulb thus increasing bulb life.

What is a dual lamp system?  A PIAA innovation that places two types of auxiliary light systems into one housing, usually a driving light and a fog light.

What is high intensity discharge?  HID for short, it is a light source in which light is produced by a stabilized arc that burns at a much higher color temperature which creates a whiter light output than a standard halogen bulb.  This arc is generated with an igniting system and ballast.

What is lens fluting?  A process in lamp design that molds the lens to control the beam pattern by deflecting the light to the desired point in the beam.  Lens fluting usually looks like vertical cuts in the lens.

What is a multi surface reflector?  MSR for short, a reflector designed to control the beam pattern with a computer designed surface to project the light precisely to the desired point in the beam without the use of fluting.

What is a projector lens?  An ellipse shaped lens that concentrates a beam of light coming from a set back bulb and reflector.  The beam is usually controlled with a shield to give it a very sharp cut off point.  This makes a great fog light or headlight low beam.

What is xenon?  The gas used in HID systems that produce the extreme white color.  Xenon gas is also used in some halogen bulbs to produce a whiter light and to keep deposits off the glass tube.

What is XTRA?  A PIAA term used to designate high efficiency bulbs that are designed to produce greater light output than its rated power consumption.  (Example 55watts = 85watts of light output.)