3528 Dome Traffic Light LED: Premium Ball Head LED For Road Signal System
As the core luminous component of urban road signal facilities, 3528 dome traffic light LED also named3528 ball head traffic light lamp bead, has become the mainstream SMD LED material for municipal traffic lights, pedestrian signal lights, highway indicator lights and crossroad signal lamps in recent years. Compared with flat-surface 3528 LED beads, the upgraded dome ball head design brings centralized light emission, long-distance penetration and anti-glare performance, perfectly matching outdoor road traffic lighting standards.
What Is 3528 Dome Ball Head Traffic Light LED?
The standard 3528 dome traffic light LED is a 3.5mm*2.8mm SMD packaged luminous bead with integrated epoxy dome ball head lens. Special customized optical arc design is exclusive for traffic signal scenes, supporting red, yellow, green three mainstream traffic luminous colors. This type of 3528 ball head LED is customized for outdoor municipal engineering, with fixed luminous angle, low light decay and UV resistance, which cannot be replaced by ordinary commercial 3528 LED beads.
Core Standard Parameters Of Qualified 3528 Dome Traffic Light LED
Standard size: 3.5*2.8mm SMD surface mount, compatible with universal traffic light PCB board
Dome ball head height: customized 1.2mm optical convex lens, luminous angle 30°/45° optional
Service life: ≥50000 hours, long-term outdoor on-off cycle use without dead lamp
Working performance: high temperature resistance -30℃~+75℃, rainproof, anti-UV, anti-aging
Color specification: pure traffic red, traffic green, signal yellow, high color purity no color deviation
Key Advantages Of 3528 Ball Head LED For Traffic Lights
More and more traffic light manufacturers abandon flat 3528 LED and adopt 3528 dome ball head traffic light LED, mainly for the following scene-oriented advantages suitable for road traffic:
1. Concentrated Luminous, Ultra-Long Visual Distance
The integrated arc ball head lens gathers light directionally, avoids light scattering, ensures traffic signal visible clearly within 200 meters in rainy, foggy and night environment, greatly improves road driving safety, which is the core advantage of 3528 dome traffic light lamp bead.
2. Stable Performance For Harsh Outdoor Environment
Municipal traffic lights run 24/7 outdoors, facing high temperature sun exposure, rainy humidity and seasonal temperature difference. Qualified 3528 ball head traffic light LED adopts pure gold wire bonding and anti-epoxy packaging, low light decay within 3% per year, no brightness fading after long-term use.
3. Low Power Consumption & Easy Mass Welding
Single bead power 0.06W-0.08W, energy-saving than traditional lamp beads; standard SMD patch design, fully automatic machine welding, suitable for mass production of integrated traffic signal modules, reduce overall production cost for signal factories.
Common Application Scenarios Of 3528 Dome Traffic Light LED
Urban crossroad full-screen traffic signal lights
Pedestrian walking/forbidden signal indicator lights
Highway toll station warning signal lights
Community, campus road small customized traffic lights
Traffic signal replacement maintenance engineering supporting beads
How To Choose Reliable 3528 Dome Traffic Light LED Supplier?
Traffic signal belongs to municipal safety engineering parts, unqualified low-cost 3528 ball head traffic light LED will cause color deviation, fast light decay and frequent lamp failure, bringing hidden danger to road traffic safety. It is recommended to cooperate with professional LED packaging manufacturers focusing on traffic special lamp beads.
Focusing on traffic dedicated SMD LED R&D, production and customization for more than 10 years, Dongguan Lanjin Optoelectronic Co., Ltd. is a localized reliable manufacturer specializing in standardized and customized 3528 dome traffic light LED. The company targets municipal traffic engineering standards, adopts imported luminous chips, strictly tests high-low temperature cycle and fog-proof luminous performance for every batch of 3528 ball head lamp beads, supports luminous angle, color temperature, bead size private customization, and provides one-stop matching solutions for traffic light manufacturers and engineering purchasers.
Different from ordinary civilian LED manufacturers, Dongguan Lanjin Optoelectronic Co., Ltd. optimizes the dome curvature and glue formula aiming at domestic road light environment, effectively solving the common pain points of market 3528 ball head LED: uneven luminous, easy yellowing lens, unstable positive and negative luminous difference, winning long-term cooperation from many traffic signal equipment enterprises across China.
FAQ About 3528 Dome Ball Head Traffic Light LED
Q1: Can 3528 dome ball head LED replace original flat 3528 traffic light beads directly?
A1: Yes, unified 3.5*2.8mm size and pin position, plug-and-play replacement, no need to modify traffic light PCB structure.
Q2: Does 3528 traffic ball head LED support customized luminous color?
A2: Professional suppliers like Dongguan Lanjin Optoelectronic Co., Ltd. support customized special wavelength red/green/yellow lamp beads for special road signal scenes.
Q3: What is the MOQ of bulk 3528 dome traffic light LED order?
A3: Conventional color stock supports small batch wholesale, customized model negotiable bulk order price, suitable for factory production and engineering procurement.
Keywords: 3528 dome traffic light LED, 3528 ball head traffic light lamp bead, traffic signal SMD LED, outdoor traffic light LED bead, Dongguan professional traffic LED supplier
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