Philips H4 Heavy Duty Relay Wiring Kit

The Philips H4 Heavy Duty Relay Wiring Kit is a complete wiring 
solution specially designed for cars using H4 dual filament headlight 
bulbs. Unlike a single relay with connector, this is a full wiring kit 
that includes everything needed to upgrade both left and right H4 
headlights in one package. It bypasses the factory H4 wiring completely 
and draws full power directly from the battery — delivering maximum 
brightness on both high beam and low beam for safer night driving.

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WHAT IS AN H4 HEAVY DUTY RELAY WIRING KIT & WHY DO YOU NEED IT?
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Most Indian cars come with thin factory H4 wiring that cannot 
carry full current to the headlights. This causes:

- Extremely dim H4 headlights on high and low beam
- Constant flickering of H4 headlights at night
- Burnt and melted H4 connectors on both sides
- H4 bulbs blowing out frequently
- Dangerous low visibility on highways and dark roads
- Overheating of original factory wiring

The Philips H4 Heavy Duty Relay Wiring Kit solves all of this by:

- Replacing entire weak factory H4 wiring with heavy duty wires
- Drawing full power directly from the car battery
- Delivering complete 12V to both left and right H4 bulbs
- Protecting H4 connectors from burning and melting
- Improving brightness up to 30-40% on both high and low beam
- Extending H4 bulb life significantly
- Protecting original factory wiring from overload damage

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DIFFERENCE BETWEEN H4 RELAY WIRING KIT VS H4 RELAY WITH CONNECTOR
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H4 Relay with Connector:
- Single relay unit
- Replaces one headlight relay and connector
- Best for replacing one faulty side

H4 Heavy Duty Relay Wiring Kit:
- Complete wiring kit for both headlights
- Includes 2 relays, full wiring harness, 
  connectors, fuses for left and right side
- Best for complete headlight system upgrade
- Recommended for maximum brightness upgrade

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COMPATIBLE H4 BULB TYPES
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This wiring kit works perfectly with all H4 bulbs including:

- H4 Halogen Bulbs (Standard)
- H4 Philips Bulbs (All variants)
- H4 Osram Bulbs
- H4 LED Conversion Bulbs
- H4 HID Xenon Conversion Kit (35W / 55W)
- H4 High Performance Upgrade Bulbs
- H4 Yellow / White / Blue Tinted Bulbs

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COMPATIBLE CARS WITH H4 HEADLIGHTS
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This Philips H4 Heavy Duty Relay Wiring Kit is compatible 
with all cars using H4 headlight bulbs including:

• Mahindra – Scorpio Classic, Bolero, Thar (Old),
               XUV 300, Scorpio (Old), Bolero Neo
  - Tata – Nexon (Old), Tiago, Punch, Altroz, Tiago NRG
  - Maruti Suzuki – Swift, Dzire, Alto, Wagon R,
                    Ertiga, Eeco, Alto 800, Alto K10,
                    Baleno (Old), S-Presso
  - Hyundai – i10, i20 (Old), Grand i10, Santro, 
              Xcent (Old)
  - Toyota – Innova (Old), Qualis, Etios, Etios Liva
  - Honda – City (Old), Amaze (Old), Brio, Jazz, WR-V
  - Renault – Kwid, Triber, Duster (Old), Kiger
  - Ford – EcoSport (Old), Figo, Aspire, Freestyle
  - Chevrolet – Beat, Spark, Sail, Cruze, Enjoy
  - Nissan – Micra, Sunny, Terrano
  - Skoda – Rapid (Old), Fabia
  - All cars

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TECHNICAL SPECIFICATIONS
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Brand             : Philips
Bulb Type         : H4 (Dual Filament)
Voltage           : 12V DC
Relay Rating      : 40A Heavy Duty
Max Load          : 100W (High Beam) / 55W (Low Beam)
Fuse Rating       : 30A per side
Connector Type    : H4 3-Pin Connector
Wire Type         : Heavy Duty Copper Wire
Fit Type          : Universal H4 Cars
Package Contents  : Complete Kit for Both Headlights
                    (Left + Right)

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KEY BENEFITS
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- Complete H4 wiring kit for both headlights
- Specially designed for H4 dual filament bulbs
- Controls both high beam and low beam perfectly
- Maximum H4 headlight brightness on both sides
- Fixes burnt and melted H4 connectors permanently
- Eliminates dim and flickering H4 headlights
- Protects original H4 car wiring from overload
- Compatible with H4 Halogen, LED and HID bulbs
- Simple plug-and-play installation
- No permanent modification to car
- Philips trusted brand quality
- Universal fit for all H4 headlight cars