
4” ROUND STOP-TAIL-TURN LIGHT 
WITH INTEGRATED LICENSE 
PLATE LIGHT
ECVR4(x)STTELP
ECVR4(x)STTELP-RD (Reduced Diodes)
Housing (note 
orientation)
#12 Screws
Light with Clear Base
INSTALLATION
A. Drill pilot holes for #12 screws 2” on 
center. These must be horizontal.
B. Drill appropriate size hole in center for 
wire connections. Hole should not have 
burrs or sharp edges that could scrape 
or chafe wire as this could create a fi re 
hazard.
C. Start #12 sheet metal screws (supplied) 
in pilot holes. DO NOT INSTALL 
COMPLETELY.
D. Seat keyhole slots of housing over 
screws and tighten. DO NOT OVER 
TIGHTEN. 
E. Make electrical connections. 
F. Push wires through surface of vehicle 
and back of housing and install light 
making sure rim of light snaps into all 
three tabs of housing. Note rib on bottom 
of light mates with slot in housing.
Electrical Connections
White Wire  Ground 
Black Wire  Tail Light 
Red Wire  Stop Light
TECHNICAL 
SPECIFICATIONS
Overall 
Dimensions:
Input Voltage 
Range:
Certifi cations:
n4.6” x 2.9”D
9-16Vdc
Rib on bottom of Light 
fi ts into slot in housing
Important Information:
• DO NOT connect this device to a strobe power supply. This product is self-contained and does not 
require an external power supply.
To review our Limited Warranty Statement & Return Policy for this or any SoundOff Signal product please visit our website at www.soundoffsignal.com and select the “Warranty & Returns” 
link along the left column of our home page. If you have questions regarding this product please contact Technical Services, Monday - Friday, 8 am to 5 pm at 1.800.338.7337, press #4 to 
skip the automated message. Questions or comments that do not require immediate attention may be emailed to techsupport@soundoffsignal.com. 
1.800.338.7337. / www.soundoffsignal.com / Thank you for trusting us with your safety!
Stop/Tail/Turn: SAE J1398, 
J1395, J585, 
DOT, FMVSS 
108 & CMVSS
License Plate:
SAE J587, FMVSS 
108 & CMVSS
Operating 
 -20º to +65º C
Temperature:
WARNING
!
This product contains high intensity LED devices. 
To prevent eye damage, DO NOT stare into the 
light beam at close range.
ECVR4(x)STTELP  4.09