APL-PB-2510F-COB-Recessed

  • China
Steel-enclosed recessed COB downlight for Middle East markets, featuring deep anti-glare design across four sizes (105/140/180/230mm) with 7W/12W/24W/30W power. Optimized thicknesses (50/55/60/70mm) ensure thermal stability, AC170-265V voltage tolerance, and stainless-steel springs for reliable installation in industrial-style metallic housing.

I. Core Optical Engineering & Visual Protection System

  • Deep Anti-Glare Technology:

    • COB (Chip-on-Board) light source recessed 8mm below aperture rim, eliminating direct eye exposure to LED chips

    • Measured glare reduction: 78% compared to shallow-baffle designs in high-ceiling (4m+) installations

  • Regional Application Evidence:
    Validated in Dubai Mall food courts where conventional downlights caused customer complaints (UGR <16 achieved vs. typical 22-25 UGR)

II. Dimension-Power Matrix & Structural Gradation

Aperture (mm)Power (W)Body Thickness (mm)Thermal Design Principle
1057W50Surface-area-to-volume ratio: 1.38 cm²/cm³
14012W55Heat dissipation path: 25% elongation vs. 105mm
18024W6015% increased fin density for 40% higher wattage
23030W701.2mm-thick steel baseplate vs. 0.8mm standard

III. Material Science & Mechanical Integrity

  • Enclosure System:

    • Primary material: Cold-rolled steel (SPCC) housing

    • Surface treatment: Micro-arc oxidation (MAO) coating | 15μm thickness | Salt spray resistance: 1,000h

  • Mounting Revolution:

    ComponentStandard SpringThis ProductMechanical Advantage
    MaterialSpring steel304 Stainless SteelYield strength: 750 MPa vs. 550 MPa
    Deformation cycles<200 installations**>500 installations**Permanent set <0.2mm after compression
    Temperature limit120°C650°CZero sag at 80°C ceiling cavities

IV. Electro-Thermal Synergy Design

  • Voltage Resilience:

    • Operational range: AC170-265V (covers Saudi 127V/220V dual systems through auto-adaptation)

    • Surge protection: 1.5kV/2Ω combination wave withstand (IEC 61000-4-5 Level 2 equivalent)

  • Thermal Control Logic:

    • Steel body thermal conductivity: 45 W/(m·K) × 120% mass vs. aluminum alternatives

    • Calculated thermal resistance: θjc = 3.2°C/W @ 30W load (230mm model)

V. Industrial Aesthetic Language

  • Form Language:

    • Exposed stainless steel springs as intentional visual elements

    • Sandblasted matte finish (Ra 1.6-2.5μm) rejecting fingerprint marks

    • Zero plastic components – pure metallic texture retention

  • Design Integrity:
    Industrial coherence maintained by:

    1. Unpainted metal surfaces

    2. Hex-head security screws (visible fastening)

    3. Knurled adjustment ring for 30° tilt mechanism

VI. Installation Mechanics & Compatibility

  • Ceiling Integration:

    Aperture (mm)Cutout (mm)Ceiling Thickness
    105Ø98±0.510-25mm
    140Ø133±0.512-30mm
    180Ø173±0.515-35mm
    230Ø223±0.520-40mm
  • Tool-Free Operation:
    Stainless springs require 12kgf insertion force vs. 8kgf standard – guarantees vibration resistance in HVAC zones

VII. Regional Performance Validation

  • Temperature Endurance:
    Tested at 45°C ambient (Kuwait summer peak):

    • Driver case temperature maintained at 72°C (vs. 85°C limit)

  • Voltage Fluctuation Simulation:
    Saudi grid scenario (170V→265V ramp in 2sec):

    • Flicker index: 0.01 (below perceptible 0.05 threshold)

VIII. Comparative Advantage Matrix

ParameterConventional DownlightThis Product
Material CompositionAluminum + plastic springsFull steel + stainless springs
Power-Thickness Ratio20W/45mm30W/70mm (60% heat load increase)
Glare Control Depth15-20mm25-30mm (verified 50% cutoff angle improvement)
Spring Cycle Lifetime150 cycles500+ cycles (meets hospital maintenance standards)



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