Question 1

What Does LED Stand For?

Accepted Answer

LED stands for Light Emitting Diode and the technology has been around and improving since the early 1950’s.

Question 2

What are the benefits of LED lamps?

Accepted Answer

LED lamps offer a multitude of advantages, including their distinctive cool white light, which gives cars a modern look. Thanks to their instant light output, they provide faster signals and thus enable drivers behind you to react faster. In addition, they are characterized by their long lifetime and high energy efficiency compared to conventional lamps.

Question 3

What LED Bulb Will I Need For My Car?

Accepted Answer

If you’re unsure what bulbs your vehicle takes then it’s always best to carry out a few checks:

Check the vehicle manual
Remove the bulbs and check the markings
Remove the bulbs, take a picture of them and email them to us
Ask the dealership
Use our very own car bulb finder

Checking online forums or asking on Reddit might seem like a good idea but you might be getting the wrong information.

Question 4

How do I know how bright these LED bulbs are?

Accepted Answer

In the automotive industry, the brightness of an LED bulb is usually categorized by “luminous flux”(lumens) which is the unit of measurement of light that is visible to the human eye. You should review the lumen rating to determine the total visible light output of the LED lamp.

Question 5

Why is my bulb flickering/dimming as soon as I install the bulbs and turn them on?

Accepted Answer

Some vehicles are equipped with a computer system that will monitor your vehicle's lighting applications. They are designed to notify a driver of a problem or fault with the functionality of a lamp. The system may recognize the low power draw of your LED bulb as a problem or fault. It may cause a lamp out indicator on your dashboard and sometimes cause the lamp to flicker or dim because it is recognizing the lamp as an open circuit (faulty/burned bulb). A load resistor or decoder should be installed by tapping onto the ground and lead wires of the socket. These components will ‘trick’ the computer system (CAN bus, BCM, etc.) into believing that you have a functioning bulb installed.

Some sensitive vehicles may require the decoder (warning canceller) to be installed together to avoid the flicker or error warning.

Question 6

What Is A “CANBus Error”?

Accepted Answer

CANBus errors are a common risk when fitting any LED bulb to your vehicle. In short, CANBus errors appear on the dashboard when your vehicle thinks there is a fault. If an error appears even though your bulb is working, a Haizer Decoder kit may be required.

Question 7

What Application On My Vehicle Can I Upgrade?

Accepted Answer

If a bulb can be removed, then it can be replaced with an upgraded bulb. All you need to do is make sure that the replacement bulbs are for the same application. A car or small truck’s headlight housing usually fits our M series Bulbs. Big Rigs and other heavy duty applications can fit our Platinum Series bulbs.

Question 8

Are LED Headlights Any Good?

Accepted Answer

LED upgrade bulbs within your headlights are exceptional pieces of kit. The beam pattern is clean, the bulbs can last anywhere between 2 – 12 years and the color temperature is a consistent 6,000K.

The value for money is definitely there and the only times you will come across horror stories will be:

Buying cheap knock offs or unbranded / generic items
Misaligned / fitted incorrectly
Websites looking to write an article that will “shock” their readers

Question 9

Are Haizer LED Bulbs Too Bright?

Accepted Answer

Provided that they are fitted correctly, your Haizer LED bulbs won’t blind other road users.

Question 10

Are HB1-9004 and HB5-9007 bulbs interchangeable?

Accepted Answer

No they are not. The 9004 and 9007 halogen/incandescent light bulbs are nearly identical, but they have some stark differences. First is the pin configuration: The 9007 has the ground pin in the middle, and high/low positive pins on the outside. The 9004 has the ground pin on one side, and in the middle and other side are the positive pins for high beam and low beam.

Question 11

My Sealed Beam Headlights have their high beams and low beams switched. What should I do?

Accepted Answer

We have a special article that details what you’ll need to do in case your high and low beams are switched (especially if it’s an H4 connector headlight). You can read it here.

Haizer FAQ