Skip to content
Year
Year
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
Make
Make
Model
Model
Qualifier
Qualifier

Dapper Lighting H4 Relay Kit

Save 27% Save 27%
Original price $43.99
Original price $43.99 - Original price $54.99
Original price $43.99
Current price $31.99
$31.99 - $39.99
Current price $31.99
 More payment options
  • Description
  • Installation
  • Video

Dapper Lighting H4 Relay Kit - DLRH4 and DLRH2

Are your old sealed beams dim? Can't see at night? You may be experiencing voltage drops from your old stock wiring. Use a Dapper Lighting H4 Relay Kit to boost your voltage back to the factory spec. Our relay harness draws power from your battery rather than your wiring harness. See better and further on a budget with our plug-and-play 2 or 4 Headlamp relay harnesses available for all Classic Cars.


Replacement Relay can be found locally as part number: RY-51 

 

Specifications:

  • 20AWG Wiring with 14AWG Power Leads
  • 30AMP Relay
  • 30AMP Fuse
  • H4 Plugs
  • Single Power/Ground Battery Contacts
  • ~7FT in Length


NOTE: Four Headlight Relay Harness is configured for standard low/high beam functionality. Therefore, in high beam setting all four H4 headlight plugs will receive power.

FAQ

What is a relay kit?

This relay kit draws power from your battery rather than your stock wiring harness. This harness should be used in applications where the users want to boost the brightness of their stock halogen lights.

When would I need a relay kit?

If your stock halogen lights are dim, this relay kit may improve light intensity.


Note:
Must be grounded in one spot on the chassis.

Warranty
Along with most of our products, enjoy a 5-year worry-free warranty on this item. Have a problem? Give us a call and we'll get you a replacement. Avoid eBay and the hassle of tracking down sellers 5 years later. Dapper Lighting is here to provide you with the quality and service you need for your automotive products.

Download installation guide for Dapper Lighting H4 Relay Kit

COMING SOON

Following Video is for Dapper Lighting H4 Relay Kit

COMING SOON

Customer Reviews

Based on 20 reviews
100%
(20)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
E
Ed Bonham
Instructions

Can you send me in the right direction to obtain installation instructions.

A
Anthony S.
Great wiring harness for C3 Corvettes with halogen headlights. Plug and Play

The wiring harness worked great and was easy to install. Worked great on my 1974 Corvette convertible using halogen headlights. Plug and play.

M
Michael B.
1976 GMC Suburban

As advertised, simple installation, about 15 minutes. Started the truck and instantly noticed a significant difference in the headlights, strong, solid beams with no fluctuation or flickering. Just make sure you identify your headlights properly as single or dual per side..

J
Jay V.
Great product

Great product

M
Michael C.
Love Dapper!

I’ve always been happy with DL products. Great upgrades to my 1974 Datsun 260z.