User Manual
User Manual 1
Introduction
Congratulations on your purchase of the ETC Source 4WRD LED retrofit kit. 
Replacing your existing incandescent burner assembly with the Source 4WRD 
LED brings a new tool to your lighting inventory. The Source 4
WRD LED 
expands the options for existing Source Four
®
 fixtures and adds a new white 
LED fixture to the ETC family. 
The following Source 4
WRD options are available as 80 CRI and 90 CRI (Gallery) 
variants:
• Source 4WRD LED retrofit kit: Used to modify an existing Source Four HPL 
incandescent fixture to a white LED fixture. The Source 4
WRD LED can 
also be used with the Source 4WRD PAR or PARNel
®
 Fixture Body to 
create a Source 4WRD PAR or PARNel fixture. For more information, visit 
etcconnect.com. 
• Source 4
WRD Light Engine: Combines the Source Four incandescent 
fixture body with the Source 4WRD LED.
Note:
Source 4
WRD
 LED retrofit kit is not compatible with 
Source Four LED, Fresnel, PAR, or jr fixtures.
WARNING:
The Source 4
WRD
 LED is not user serviceable. Field 
modification of the Source 4
WRD
 LED will void your ETC 
warranty.
Source 4WRD LED 
retrofit kit shown 
installed on a Source 
Four fixture










