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30% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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Receive Up To 30% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ30 at checkout to receive 30% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Chassis, Shocks & Struts, Outdoor Lifestyle, Towing, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 10/1/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.


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Car Lights

 

Car Lights

Your car’s lights help you see and be safe on the road. From turn signals, to headlights, they all have an integral function in keeping you and other drivers safe on the road. There are high beam and low beam functions to give you better visibility when you need it. Headlights are aimed so they show the maximum amount of road in front of the vehicle.

What are car lights and how do they work

How Does it Work?

  • Electricity passes through the bulb and the electrons vibrate through the filament, creating very high temperatures.
  • Automotive lightbulbs are available for headlights, LED interior and exterior lights, conventional signaling and interior lighting and accessories.

How is it Made?

  • A polycarbonate plastic headlight lens covers the bulb.
  • Different varieties of bulbs including Tungsten, Tungsten halogen, Halogen-infared reflection (HIR), and High intensity discharge (HID).

Why Does it Fail?

  • Glass breakage.
  • Long term failure- the filament is so fatigued that it’s electrical resistance increases to the point the current won’t flow.
  • Sealing failure occurs when oxygen enters the bulb.
  • Thermal Shock- the most common- when you turn it on, the bulb flashes brightly and dies.

What are the Symptoms of Failure?

  • Flickering Bulbs.
  • Burned out bulbs.

What are the Implications of Failure?

  • Lessened ability to see at night.
  • Making unsafe turns due to signal light being out.

How Difficult is the Install?

Difficulty Rating:

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