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Twist Lock Intelligent Photocontrol DALI Constant Illumination Midnight Night Real-time Fault Alert
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Twist Lock Intelligent Photocontrol DALI Constant Illumination Midnight Night Real-time Fault Alert
| Place of Origin | China |
| Brand Name | LongJoin |
| Model Number | JL-252 |
Product Details
Rated Voltage:
120~277VAC
Dimming Output:
DALI
Operate Levels:
Turn-On＜100Lx，Turn-Off＞100Lx / Per Client Request
Fail Mode:
Fail-On
Certifications:
RoHS,UL,CE
Real-world Scenarios:
Major Traffic Arteries
Highlight:
DALI NEMA Controller
,Midnight Night NEMA Controller
,Midnight Night twist lock
Payment & Shipping Terms
Price
negotiable
Packaging Details
Different packaging methods are adopted according to different modes of transport.
Payment Terms
Western Union,MoneyGram,T/T
Product Description
Twist Lock Intelligent Photocontrol DALI Constant Illumination Midnight Night Real-time Fault Alert
JL-252 Twist-Lock Intelligent Photocontrol DALI, Constant illumination, Midnight night
Product Summary
The dimming photocontrol JL-252 is designed to automatically control dimmable LED street lighting (DALI) in accordance with ambient natural lighting levels. This advanced product features microprocessor circuits with an IR-filtered phototransistor for precise light detection.
A heavy-duty surge arrester (MOV) protects the lamp from inrush current and lightning impulses. The built-in 10-second time-delay prevents excessive operation caused by spotlights or lightning during nighttime hours.
With a relay rated for over 10,000 cycles, this product delivers constant reliability. When used with the optional sandwich cover, it offers extended operational life. The twist lock terminals meet ANSI C136.41 requirements and are UL listed under ANSI/UL773 standards.
Product Size
Product Features
- ANSI C136.41 Twist-lock
- DALI Dimming
- MOV 40kA Surge Arrester Built-in
- Optional Sandwich cover for Long Life
- Multi-Volts Application
- IP65 Ready / IP67 Optional
- IR-filtered Phototransistor
- Constant On/Off Dimming
- Midnight Dimming
Specifications
| Model No. | JL-252 |
|---|---|
| Rated Voltage | 120~277VAC |
| Applicable Voltage Range | 105~305VAC |
| Rated frequency | 50/60Hz |
| Dimming Output | DALI |
| Spectral Acquisition Range | 350~1100nm; Peak wavelength 590nm |
| Rated Loading | 1000W Tungsten, 1800VA Ballast, 8A e-Ballast @120VAC/ 5A e-Ballast @208-277VAC |
| Operate Levels | Turn-On＜100Lx,Turn-Off＞100Lx / per client request |
| Typical Time Delay | 5s |
| Ambient Temperature | -40°C ~ +70 °C |
| Related Humidity | 96% |
| Fail Mode | Fail-On |
| Shell material | PC+PC |
| High protection | Double Shell |
| Lightning Protection | 4KV/2KA |
| Surge protection | MYL1-40K511 |
| IP level | IP67 |
| Factory Settings | Illuminance/Delayed/Reduction Duration Customizable |
| Certifications | |
Frequently Asked Questions
What is a Twist Lock Intelligent Photocontrol with DALI Constant Illumination and Midnight Night Mode?
It is an intelligent twist-lock mounted photocontrol that supports DALI communication, provides constant illumination control, and features a dedicated midnight night dimming mode for intelligent outdoor lighting.
What is the function of DALI constant illumination in this photocontrol?
It automatically adjusts lamp brightness in real time according to ambient natural light to maintain a stable preset illumination level, ensuring uniform lighting and high energy efficiency.
What is the midnight night mode and how does it work?
Midnight night mode automatically dims the lighting to a lower brightness at preset late-night time periods, reducing power consumption while maintaining basic safety lighting.
What are the benefits of the twist lock installation design?
Twist lock enables quick, secure, waterproof and anti-loosening installation, compatible with standard photocontrol sockets for street lights and outdoor luminaires.
In which applications is this DALI intelligent photocontrol mainly used?
It is mainly used in street lighting, road lamps, garden lighting, community lighting and other public outdoor lighting systems requiring precise dimming and timed energy-saving control.
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