Hella H4/9003/HB2 60/55W Xenon Bulb, Premium +50% SKU: 002525651

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Why so many numbers?

The H4 designation was assigned to the first Halogen dual filament bulb homologated by the ECE (European Union) in 1970. It is the most common bulb in use world wide. It has many variations in voltage, wattage, color and construction.The single over-riding criteria is that it will fit in a lamp designed to the H4 standard.

In 1983 Ford Motor Company applied to USDOT for a replaceable bulb lamp design to allow the use of aerodynamic headlamps. They designated use of an H4 bulb, but with changes and the DOT designation 9003 was assigned. These changes involved voltage, Wattage and light color while maintaining the basic H4 design. There were some other changes made primarily in the area of construction tolerances. A 9003 is basically an H4 12 volt 60/55 watt bulb with a light color of about 3200ºK.

Even though the 9003 and the H4 are simular, they are not the same, so ECE applied a new designation of HB2 to the 9003 for cars exported to the US market.

The HELLA +50:

Produces 50 percent more light (compared to standard bulbs*) and extends the light cone, giving performance-oriented drivers additional safety time in case of an emergency situation.

Features:

• Up to 50% more light output than HELLA standard bulbs
• Meets global standard (ECE R37 & SAE/ DOT and INMETRO regulation).
• Filament design optimized
• Wider and brighter light
• OE quality
• With silver top coating to be invisible in the headlight

Specifications: 

• Type: H4, 9003, HB2
• Voltage: 12 V
• Wattage: H/L 60/55W
• Base P43t
• Globe: Clear Quartz, T4.625
• Light Temperature: 3600ºK
• Luminous Flux: 1815/1100 lm
• Approval: DOT, ECE and INMETRO when applicable
• B3 Life (97% Survival) H/L 250/400 hr
• Tc Life (67% Failure) H/L 500/900 hr

Other Numbers