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Purpose-engineered metal cable glands delivering IP68 waterproofing, UL listing, and EMC shielding for every outdoor lighting installation demand.
Outdoor lighting infrastructure — from smart street lamps and highway tunnel fixtures to industrial floodlights, solar-powered pathway lights, and architectural façade illumination — demands cable entry components that can withstand the harshest environmental conditions for decades. A metal cable gland is the mechanical and electrical interface between the cable and the luminaire housing or junction box, and its performance directly determines the longevity, safety, and reliability of the entire lighting system.
Unlike standard indoor connectors, metal cable glands for outdoor lighting must simultaneously address moisture ingress, UV degradation, thermal cycling, mechanical vibration, chemical exposure, and electromagnetic interference — all while meeting stringent international safety standards. The selection of the correct gland type, material, and IP/UL rating is therefore not merely a procurement decision but a critical engineering consideration.
The global cable gland market was valued at approximately USD 1.4 billion in 2023 and is projected to surpass USD 2.1 billion by 2030, driven by accelerating investments in smart city infrastructure, renewable energy, industrial automation, and offshore development. Metal cable glands — particularly brass, stainless steel, and aluminium alloy variants — account for over 60% of total market revenue owing to their superior mechanical strength, EMC shielding capability, and long service life in demanding environments.
In the outdoor lighting segment specifically, several macro-level trends are fuelling demand for higher-specification metal cable glands:
Engineering attributes that make metal cable glands the definitive choice for outdoor lighting cable management.
Multi-stage elastomeric sealing systems prevent water ingress under continuous submersion conditions, protecting outdoor lighting electronics from moisture-induced failure even in extreme weather events.
360° metallic bonding to cable shielding layers ensures complete electromagnetic compatibility, preventing smart lighting control signals from being corrupted by external RF sources or generating interference themselves.
ATEX, IECEx, and UL-listed explosion-proof variants (EX3, EX4) provide flameproof cable entry for outdoor luminaires installed in Zone 1/2 hazardous areas including petrochemical facilities and offshore platforms.
Nickel-plated brass, 316L stainless steel, and marine-grade aluminium alloy constructions deliver decades of corrosion resistance in coastal, high-humidity, and chemically aggressive outdoor environments.
Rated from -40°C to +120°C, these glands maintain sealing integrity through extreme thermal cycling encountered in desert solar installations, arctic road lighting, and industrial furnace area fixtures.
Integrated cable strain-relief mechanisms absorb mechanical stress from wind-induced cable movement, vehicle vibration on road lighting poles, and thermal expansion — significantly extending cable and connector service life.
Backed by nearly two decades of precision manufacturing excellence in Yueqing, China's electrical hub.
Metal cable glands serve as the backbone of cable integrity across the full spectrum of outdoor lighting environments.
Modern smart street lighting poles integrate LED drivers, wireless communication modules (LoRa, NB-IoT, 5G small cells), environmental sensors, and CCTV cameras — all within a single pole structure exposed to rain, UV, and temperature extremes. Metal cable glands with IP68 ratings and integrated EMC shielding are essential at every cable entry point to prevent signal degradation and moisture ingress. The growing density of urban smart lighting networks — with some cities deploying hundreds of thousands of connected nodes — represents one of the largest volume opportunities in the outdoor cable gland market.
Tunnel luminaires face uniquely demanding conditions: constant vibration from traffic, high humidity, diesel particulate contamination, and the need for continuous operation without maintenance access. Metal cable glands used in these applications must provide robust strain relief against vibration fatigue, chemical resistance to road de-icing salts, and IP66/IP68 ratings to survive high-pressure wash-down cleaning. Nickel-plated brass glands with double-compression sealing are the standard specification for major infrastructure projects globally.
Offshore oil platforms, wind turbine towers, ship deck lighting, and port facility floodlights demand cable glands that resist continuous salt spray, biofouling, and the mechanical shock of wave action. Stainless steel 316L marine cable glands with ATEX explosion-proof certification are mandatory in these environments. The EX4 marine cable gland product line from Hoonsun is specifically engineered to meet these requirements, with UL listing providing assurance for North American offshore installations.
The rapid global expansion of solar street lights and solar-powered outdoor security lighting systems has created strong demand for UV-stabilised, corrosion-resistant metal cable glands rated for DC photovoltaic wiring. These installations require glands that can handle larger-diameter, double-insulated PV cables while maintaining IP68 sealing at panel junction boxes and battery enclosures exposed to decades of outdoor weathering. Hoonsun's expansion into the photovoltaic sector since 2023 positions it directly at the intersection of renewable energy and outdoor lighting infrastructure.
Petrochemical refineries, LNG terminals, mining operations, grain handling facilities, and paint spray booths all require outdoor floodlighting in classified hazardous zones. Cable glands in these environments must carry ATEX Zone 1/2 or NEC Class I Division 1/2 certification, with explosion-proof construction that prevents ignition of flammable atmospheres. The EX3 cable clamp sealing joint and EX4 marine gland from Hoonsun provide certified solutions for these high-stakes applications.
High-end architectural lighting projects — illuminating building facades, bridges, fountains, and heritage structures — demand cable glands that combine technical performance with aesthetic discretion. Compact, low-profile metal glands in brushed stainless steel or black-anodised finishes allow designers to maintain visual integrity while ensuring IP68 sealing at every underground or exposed cable entry point. The durability of metal glands is particularly valued in landmark installations where access for maintenance is restricted.
The metal cable gland industry is evolving rapidly in response to technological and regulatory shifts in outdoor lighting.
Next-generation cable glands are being developed with embedded temperature, humidity, and partial-discharge sensors, enabling predictive maintenance of outdoor lighting cable systems through IoT connectivity — a convergence of hardware and digital intelligence.
Regulatory pressure from the EU's RoHS and REACH directives is accelerating the transition to lead-free brass alloys and recyclable stainless steel, with manufacturers investing in closed-loop manufacturing processes to reduce the environmental footprint of metal cable glands.
The explosive growth of outdoor EV charging stations requires high-current, IP68-rated metal cable glands for weatherproof cable management — a rapidly emerging application that bridges outdoor lighting infrastructure and e-mobility ecosystems.
Contractors and system integrators are demanding cable glands with push-fit or quarter-turn locking mechanisms that reduce installation time on large-scale outdoor lighting projects, driving innovation in gland geometry and sealing technology without compromising IP performance.
As 5G infrastructure co-locates with smart street lighting poles, electromagnetic compatibility requirements for cable glands are tightening significantly. UL-listed metal shielded cable joints with 360° EMI/RFI shielding are becoming the baseline specification for new urban lighting tenders.
Post-pandemic supply chain resilience strategies are prompting major lighting OEMs to dual-source cable glands from certified Chinese manufacturers like Hoonsun alongside regional suppliers, balancing cost efficiency with supply security for critical infrastructure programmes.
Founded in 2006, Zhejiang Hongxiang Connector Co., Ltd. is rooted in Yueqing, Zhejiang — a national hub for precision electrical manufacturing in China. After nearly two decades of dedicated development, the company has evolved into a large modern industrial connectivity solutions provider integrating R&D and design, large-scale intelligent manufacturing, global sales, and one-stop services. It stands as a benchmark enterprise of considerable scale and influence in China's cable gland and connector industry, and a key player among national high-tech enterprises.
Boasting a modern intelligent manufacturing industrial park, the company operates a standardised production workshop of over 10,000 square metres, equipped with multiple high-precision automated production lines, CNC machining centres, and a full-process quality control laboratory. With a core team of more than 300 professionals — over 30% of whom are R&D and quality management personnel — its annual production capacity exceeds 80 million units.
Its core product portfolio includes metal cable glands, nylon cable glands, waterproof cable glands, explosion-proof connectors, conduit fittings, and various customised connecting accessories. These products serve high-end sectors such as industrial electrical equipment, new energy equipment, rail transit, shipbuilding and heavy industry, construction machinery, military supporting facilities, and communication & industrial control.
Internationally recognised certifications underpin every product we deliver to the global outdoor lighting market.
Nearly two decades of continuous innovation, manufacturing excellence, and global expansion in cable gland technology.
The company currently has more than 120 employees, more than 200 production equipment, and is equipped with a professional sales and management team, committed to improving production efficiency and product quality for outdoor lighting connection solutions worldwide.
Explore our full portfolio of IP68-rated, UL-listed, and explosion-proof metal cable glands engineered for every outdoor lighting application.
