Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Twist Lock Intelligent Photocontrol DALI Constant Illuminance DALI Dimming","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/65\/c92bcc378cf34eb46a941663b523-200x200-1\/twist_lock_intelligent_photocontrol_dali_constant_illuminance_dali_dimming.jpg","attrs":{"Brand Name":"LongJoin","Model Number":"JL-251","Place of Origin":"China","Price":"negotiable"}}
{"title":"Smart Dimming Photocontrol 0-10V Constant Illumination Version Real-time Fault","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/65\/c92bcc378cf34eb46a941663b523-200x200-1\/smart_dimming_photocontrol_0_10v_constant_illumination_version_real_time_fault_alert.jpg","attrs":{"Brand Name":"LongJoin","Model Number":"JL-241","Place of Origin":"China","Price":"negotiable"}}
{"title":"0-10V NEMA Controller Constant Illumination Midnight Night Optical Decay","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/65\/c92bcc378cf34eb46a941663b523-200x200-1\/0_10v_nema_controller_constant_illumination_midnight_night_optical_decay_compensation_real_time_fault_alert.jpg","attrs":{"Brand Name":"LongJoin","Model Number":"JL-243","Place of Origin":"China","Price":"negotiable"}}
{"title":"Smart Dimming Photocontrol 0-10V Constant Illumination Midnight Night Real-time","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/65\/c92bcc378cf34eb46a941663b523-200x200-1\/smart_dimming_photocontrol_0_10v_constant_illumination_midnight_night_real_time_fault_alert.jpg","attrs":{"Brand Name":"LongJoin","Model Number":"JL-242","Place of Origin":"China","Price":"negotiable"}}
{"title":"Twist Lock Intelligent Photocontrol DALI Constant Illumination Midnight Night","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/65\/c92bcc378cf34eb46a941663b523-200x200-1\/twist_lock_intelligent_photocontrol_dali_constant_illumination_midnight_night_real_time_fault_alert.jpg","attrs":{"Brand Name":"LongJoin","Model Number":"JL-252","Place of Origin":"China","Price":"negotiable"}}
{"title":"Twist Lock Intelligent Photocontrol DALI Constant Illumination Midnight Night","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/65\/c92bcc378cf34eb46a941663b523-200x200-1\/twist_lock_intelligent_photocontrol_dali_constant_illumination_midnight_night_ota_firmware_update.jpg","attrs":{"Brand Name":"LongJoin","Model Number":"JL-253","Place of Origin":"China","Price":"negotiable"}}
Twist Lock Intelligent Photocontrol DALI Constant Illuminance DALI Dimming Revenue-grade Energy Metering
JL-251 Twist-Lock Intelligent Photocontrol DALI, Constant illuminance DALI Dimming
The dimming photocontrol JL-251 is designed to automatically control dimmable LED street lighting (DALI) based on ambient natural lighting levels.
This microprocessor-based product features an IR-filtered phototransistor and includes a heavy-duty surge arrester (MOV) to protect against inrush current and lightning impulses. A preset 10-second time-delay prevents excessive operation from spotlights or lightning during nighttime.
With a relay life exceeding 10,000 cycles and extended lifespan when used with an optional sandwich cover, this product ensures constant reliability. It meets ANSI C136.41 twist lock requirements and is UL listed under ANSI/UL773 standards.
What is a Twist Lock Intelligent Photocontrol with DALI Constant Illuminance and DALI Dimming?
It is an intelligent twist-lock photocontrol that supports DALI protocol, featuring both constant illuminance control and DALI dimming for precise and automatic lighting management.
What is the advantage of the twist lock structure in this intelligent photocontrol?
The twist lock design enables fast, secure and waterproof installation, ensures stable electrical connection, and is widely compatible with standard street light and outdoor luminaire sockets.
What is DALI constant illuminance control?
DALI constant illuminance control automatically adjusts lamp brightness in real time to maintain a stable preset illumination level according to changes in ambient natural light, achieving energy saving and uniform lighting effect.
How does DALI dimming function work in this photocontrol?
It communicates with LED drivers via DALI digital signal to realize stepless dimming, accurate brightness adjustment and reliable on/off control, supporting intelligent and centralized lighting system management.
In which lighting scenarios is this DALI twist lock photocontrol mainly applied?
It is mainly used in street lighting, road lamps, garden lights, corridor lighting and commercial outdoor lighting that requires high-precision dimming and constant illuminance control.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1996
Employee Number:
60~200
Ecer Certification：
Verified Supplier
Zhejiang long-Join Electronics Co., Ltd, is a wholly-owned subsidiary of Shanghai Long-Join intelligent Technology Inc, (stock Code:837588). The company was founded in 1996 for more than 20 years. The photo controller series is a word-class leading product in the industry. The company’s busine... Zhejiang long-Join Electronics Co., Ltd, is a wholly-owned subsidiary of Shanghai Long-Join intelligent Technology Inc, (stock Code:837588). The company was founded in 1996 for more than 20 years. The photo controller series is a word-class leading product in the industry. The company’s busine...
