I some cases. They can not if there are parts to be removed to gain access to the light. They can not be outside for very long.
Any auto shop such as Auto Zone will have headlight replacement bulbs. Also general stores such as Sears or Kmart offers replacement bulbs in their auto sections.
You have to replace the headlight on the 89 probe not the bulb. There are four screws that secure the headlight. I turned my headlights on and unhooked the battery so I could replace it while it was in the up position. For standard replacement bulbs I suggest buying them at Wal-Mart. They are about half the price you would pay at an auto parts store.
A Jaguar dealer is the primary place to find quality, factory direct headlight bulbs for a Jaguar luxury sedan. Major auto parts dealers also stock a wide variety of quality headlight bulbs. Autozone, Napa and other national chains are reliable places to find headlight bulbs for a Jaguar luxury sedan.
One can purchase H1 bulbs in bulk online on sites such as Amazon, eBay, 1000 Bulbs, Sylvania, and Buy Headlight Bulbs. One can also have them special ordered in bulk at retailers such as Auto Zone and Advanced Auto.
If it is an easy replacement they will. If it is not easy they will pass on it.
One will find cheap LED headlight bulbs at a wholesale retailer such as Costco. Lights also will go on sale at most auto supply shops from time to time.
While the first place most people check when looking to buy replacement headlight bulbs online is major auto retailers such as Autozone and Pep Boys, there are some specialty sites that sell only headlight bulbs. Two examples of these specialty sites are Buyheadlightbulbs and Powerbulbs. Shoppers should compare prices before committing to a purchase.
Truck headlights can be found at your local auto supply store. Unscrew the cover for the old headlight, remove it and then remove the old headlight. You will need a screwdriver and possibly a wrench for this. Next, replace the broken headlight with the new one, and replace the headlight cover. Lastly, check to make sure the new headlight works.
Most headlight bulbs can be repaired by the driver; a section of your owner's manual will detail the bulb-type and how to replace it. The head light covering itself requires partial dismantling of the front bumper and/or grill and requires the services of an auto mechanic shop.
One can purchase headlight replacement bulbs from most petrol stations, other places could include auto parts sales centers such as The Motorist Discount Center.
It's possible you just need to replace the headlight bulbs. Any auto parts store will be able to check for you and see if that is the issue. If the problem turns out to be more serious, i.e. your alternator going bad, I would suggest contacting the dealer or your mechanic.