9003 vs. H4 Headlights - What's the difference?

Extremely super bright D-CR vision HB2 9003 H4 LED forward lightings lights bulbs 3000K yellow upgrade dim OEM halogen/HID HB2 9003 H4 forward lighting, fog lights, cornering lights, DRL(daytime running lights) for auto cars, trucks, motorcycles for vision and safety. Not compliant with DOT / FMVSS108 and not street legal in the USA for forward lightings. Legal for off-road use in ATV, snowmobile, and off-road racing use, only auxiliary for forward lighting.

3000K HB2 9003 H4 LED Headlights Bulb Upgrade Halogen/HID

Voltage Automotive 9003 HB2 H4 Polarize White Headlight Bulbs

The Wagner halogen capsule delivers brighter, whiter light than incandescent lighting. Wagner Lighting headlight bulb's built a reputation in the automotive industry for quality and craftmanship. Wagner Lighting headlight bulb's are available for on and off road use and are designed for all weather conditions.

Wagner Lighting 9003 Headlight Bulb

Auxbeam® H4 9003 led headlight bulbbrightest wireless led headlight bulbs

H4 9003/HB2 12V 60/55W Direct Replace For Auto Factory Halogen Light Bulbs [Standard Factory Color] w/ Mbox by ICBEAMER - ICBEAMER

Sylvania 9003: LED Powersports Headlight or Fog Bulb, 6000K Cool White Light, 2 Pack 9003SL.BX2 - Advance Auto Parts

What's the difference between H4 and H7 bulbs?

9003 H4 Canbus Decoder For LED Headlights

H4/9003 Headlight Bulb Discovery: Features, Specs, and More

H4 vs 9003: Which One Should You Use?

Sngl 9003 H4 LED Headlight Bulbs High and Low Beam for Car Motorcycle

SYLVANIA 9003 LED Fog & Powersports Bulb, 2 Pack

4 sides H4/9003 Led Headlight Bulb Dual High Low Beam Hb2 - Temu

H4 9003 HB2 90/100 Magnum Cosmic White