Reasons that GP Thunder 7500K bulbs are the best bulbs on the market:

1, GP Thunder bulbs are made of fused quartz glass so they can produce high generating power even though they are just smaller. They have excellent heat shock-resistance and they won't be broken even though they have water on their surface when they light on. GP Thunder bulbs also prevent any damage to the lens and wiring harness because their newest design .

2, GP Thunder bulbs have a longer life because they contain Xenon and Krypton gases.

3, They have high performance quartz bulb and completely new base concept.

• Synthesis of most successful bulbs worldwide
• Easy to mount because of its newly designed plastic base
• Precise fitting of bulb in base
• Serve full range of application (fog, low beam, high beam)

Features:

• Improve discrimination to objects at night
• Color harmonized with HID lighting in effect and color temperature
• Easy to substitute for standard halogen bulbs
• Meets ECE R37 and DOT regulation
• Installation is easy as 123.
• Yes, it is Legal in all states!

Warranty:
45 day replacement warranty for defective GP Thunder bulbs only. Free replacement if under warranty.
Refund is also available if you are not completely satisfied within 10 days.

Note: Every bulb has its life, we can only provide 45 day warranty while other sellers don't have any warranty. The tested average life for GP Thunder bulbs are as following:

H1: 1800 days/30 minutes per day
H3: 2400 days/30 minutes per day
H4(=9003): 1700 days/30 minutes per day (low beam). 3000 days/10 minutes per day (high beam)
H7: 2200 days/30 minutes per day
9004(=HB1): 1500 days/30 minutes per day (low beam). 2500 days/10 minutes per day (high beam)
9005(=HB3): 2500 days/30 minutes per day
9006(=HB4): 2300 days/30 minutes per day
9007(=HB5): 1500 days/30 minutes per day (low beam). 2500 days/10 minutes per day (high beam)

Please keep in mind "DO NOT" touch the bulb glass surface while installation. Your fingerprint may cause damage to the bulbs when you turn on the light.

Please check here to see if the bulbs fit your car if you are not sure and can't find it on your car's manual.