The JRA7 Series LED street lights from Jingri Lighting feature a contemporary-streamlined geometry with a refined design attentive to details for superior application performance, energy efficiency and system reliability. Integrating a solid construction, optimum thermal design, the latest in LED technology and lighting control, JRA7 provides a highly adaptable roadway and area lighting solution with enviable cost of ownership. While its modern styling generates an architecturally appealing look that is sure to complement both new and existing architecture, the future-safe lighting system offers the scalability to meet customized application requirements and accommodate ongoing improvements in LED technology.
JRA7's robust construction and smooth design offer distinct advantages in terms of structural strength, corrosion resistance and heat dissipating properties. The heavy duty housing is constructed of high pressure die casting aluminum. Extremely precise process control and use of low copper HPDC aluminum alloy eliminate gas porosity defects and give the aluminum housing remarkable mechanical and thermal properties. Excellent architectural stability of the luminaire housing enables robust protection of electrical and optical components against vibration and mechanical impacts. The weathertight IP66 ingress protection for both electrical and optical chambers ensures the luminaire is protected from dust ingress and water invasion from any direction. The waterproof housing is designed with a pressure stabilizing micro-membrane breather to prevent seal fatigue and failure. Two tool-less latches allow for easy access to the driver and wiring compartment. The top housing that holds the electrical components is removable for serviceability and upgradability.
The intrinsic high thermal conductivity and superior convective cooling design of luminaire housing ensure excellent external thermal management. The streamlined heat sink design eliminates external heat dissipation fins which are prone to buildup of dust and debris. The self-cleaning aerodynamic geometry guarantees consistent integrity of the airflow that facilitates convective heat transfer. The LED assembly uses a metal core PCB that takes advantage of a high performing thermal interface material (TIM) to minimize thermal resistance (Rth) along the thermal path from the LED junction to the aluminum housing. The reliability of the solder joint between the LED package and MCPCB also ensures excellent thermal fatigue/creep strength and improved reliability at higher drive currents.
Light Source and Optics
The JRA7 Series LED street lights are available in multiple lumen packages that range from 2870 to 24720 lumens in warm, neutral and cool white color temperatures. JRA7 can be scaled from 18 LEDs to 96 LEDs per luminaire in two different milliamp ratings. Super package-level thermal performance combines with excellent system-level thermal management allows Cree/Osram LEDs to deliver optimized combination of light quality and light output under a wide range of environmental conditions. The superior quality of light, volume of lumens, and industry-leading lumen maintenance ensure years of trouble-free operation and significant energy savings. Precision molded secondary optics enable highly optimized target illumination performance. These TIR optical lens produces Type 1 Short, Type 2 or Type 3 distribution with high uniformity and maximum spacing's between columns. A tempered glass lens is sealed to the optical chamber for additional protection.
JRA7 is designed with a separated electrical chamber for thermal isolation from the LED engine and ease of maintenance. The lighting system utilizes 525mA/700mA Mean Well/Inventronics drivers to deliver high performance regulation with low total harmonic distortion (THD) and a high power factor (PF). These constant current LED drivers includes a full set of protection features including overcurrent, short-circuit, overvoltage and over- temperature protections. Robust lightning protection protects the lighting system against multiple nominal surges of up to 10 kV. An automatic circuit breaker ensures an enhanced degree of protection against electrical shock. The electrical components are wired using quick disconnect harnesses for simplified field maintenance.
JRA7 LED street lights support a full range of dimming options, including both stand-alone and network protocols. Optional photocell integration provides the ability for dusk-to-dawn control. A wireless control module can be added to transform the light fixture into a wireless node for remote monitoring and control.
All aluminum components are treated with a multi-stage cleaning and chromating process which creates a corrosion resistant substrate. A TGIC thermoset polyester powder coat finish is applied to the casting surface for enhanced durability against salt, water and UV damage.
The JRA7 Series LED street lights are designed for both slipfitter or horizontal arm mount and accommodate 48mm or 60mm O.D. steel poles. An adjustable inclination mechanism allows for a +15° to -15° tilt in 5° increments with cast-in leveling guides.