JL-204C NEMA Interface Twist-lock Electronic Light Control Switch


Product Introduction
JL-204C twist-lock analog electronic light control switch is applicable to independently control street lighting, garden lighting, passage lighting, porch lighting and park lighting according to the ambient natural light level.

The product adopts an electronic design with a photosensitive tube and is equipped with a surge arrester (MOV). In particular, JL-204C can meet all kinds of power supply and provide customers with a wider range of voltage.

In addition, its delay control function can avoid redundant operation caused by spotlights or lightning at night.

The product provides three lock terminals, which meet the requirements of ANSI C136.10 and ANSI/UL773 area lighting plug-in and twist-lock photocontrol standards.


3 Kinds View


Parameter List



*ANSI C136.10 twist-lock
*Delay 5-10 seconds
*Built in surge protection
*Failure mode: light off
*UV resistant housing
*Support IP54/IP65/IP67 (equipped with photocontrol socket)

Installation Instructions
*Disconnect the power supply.
*Connect the socket according to the figure below.
*Push the photocontrol up and turn it clockwise to lock it in the socket.


Initial Testing
*It is normal for the Photocontrol to take few minutes to turn off when first installed.
*To test “turn on” during daytime, cover its eye with opaque material.
*Do not cover with finger because light traveling through fingers may be great enough to keep the Photocontrol off.
*photocontrol test will take approximately 2 minutes.
* Operation of this Photocontrol is not affected by weather, moisture or temperature changes.

Product Coding Table


1: 12 = MOV 110Joule / 3500Amp

15 = MOV 235Joule / 5000Amp

23 = MOV 460Joule / 7500Amp

2: C=PC housing

P=PP shell

K=PP inner shell+PC outer shell

3: D=Green



4: IP65=elastomer ring+silicone outer seal

IP54=electronic associated foam washer

IP67=silicone ring+silicone inner and outer seals (including copper pin)