Step 1
Removing the Original Bulbs
a. Open the hood and ensure it is properly secured.
b. Locate the headlight housing assemblies. If you are unable to easily access the headlight
assemblies, we recommend you seek professional installation step.
c. If easily accessible, on the rear of each assembly will be a rubber or plastic cover. Safely
removing the seal will grant access to the headlight bulb.
d. The stock bulb is secured by a series of locking pins or a spring latch(Varies by bulb size).
The bulb can be removed by unlocking the latch and rotating the bulb towards the turn
signals until the bulb comes loose.
e. After rotating the bulb to the unlocked position remove the bulb from the headlight
assembly.
f. After you have safely removed the bulb, separate the bulb from the factory power harness.
In some cases, you need to separate the bulb from the factory plug first, then took out the
bulb.
Save the removed stock bulbs in the BOSLLA box and put it in the trunk for emergency
usage.
Step2
Plug In and Test
Highly recommended to test
BOSLLA
LED kits before installation.
You can do this by simply plugging the BOSLLA kits into the factory power plug, Once
connected,
DO NOT
install the BOSLLA LED into the headlight assembly just yet, Place the
bulb in a safe area and activate the low beam.
Possible Results:
a. If the BOSLLA LED Kits lights up, proceed to Step 3.
Installation Details
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b. If the BOSLLA LED Kits does not light up(Single Beam Bulb like:H1, H3, H7,
H8/9/11/16, H10, 9005, 9006, 9012, 5202, 880, 881, etc.)
Simply disconnect, flip the plug to reverse the positive and negative, and reconnect.
c. Special interface(Rare)
i. Disconnect Kits from the factory plug.
ii. Contact customer service via
, to get faster support, please kindly
provide the order ID, detailed problem description with photos or videos and your Vehicle
Make/Model/Year, you will get a reply within 1-2 business days.
The more accurate problem feedback, the faster the solution will be offered.
Step 3
Complete Installation
After successfully testing each bulb, insert the bulb into the headlight housing and
secure it by rotating it into place.
a. Only for H7 Bulbs
Due to the safety latch located on some H7 housings, an additional step may be needed
to properly secure the bulb.
i. Twist the bulb base ring on the bulb until it loosens.
ii. Place the bulb base ring onto the headlight assembly opening.
iii. Secure factory latch or spring over the bulb base ring.
iv. Reinsert the LED bulb into the headlight assembly through the secured bulb base ring.
v. Twist the led bulb until it locks into place with bulb base ring.
Vi. Repeat with the other side.
b. The BOSLLA LED kits require sufficient airflow to prevent overheating, Therefore, we
recommend not re-installing the cover, or please ensure there is enough space for air
convection and heat dissipation.
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