Recessed Downlighter 4inch-10inch – Premium Commercial Lighting Solution
GR-DL-N Series is one of the recessed commercial downlights, available COB / SMD light source in led chips type, with a top-quality die-cast aluminum body, including 4inch, 5inch, 6inch, 8inch, 9inch (Diameter:250mm, cutout: 220-240mm), and 10inch (diameter:300mm, cut out: 240mm-280mm) in dimension. It can widely meet the different installation heights of various commercial places.
Key Features
Multiple size options from 4inch to 10inch with various wattage choices (15W-50W).
Premium materials: Die-cast aluminum body, glass/PMMA cover, high-strength steel springs.
Advanced optical system with 90/120° beam angle options for COB/SMD types.
High efficiency LED driver with >85% efficiency and multiple brand options.
Certified with CE, RoHS standards with 3/5 years warranty.
Technical Specifications
Installation: Recessed, Type: Commercial & Industrial, IP grade: IP20
Light source: COB/SMD LED, CRI>90, SDCM<3, Lifetime>50000Hrs
Control: ON/OFF, Input: 110/220-240VAC 50/60Hz, Free flicker: Yes
Efficiency: >85%, THD<10%, IP Rating: IP20
Certification: CE RoHS, Origin: Made in China
Detailed Description
The GR-DL-N series features a high-quality die-cast aluminum body with white finish for the outer trim and black finish for the heat sink. The reflector is made of silver-finished plastic for COB type, while the cover is available in glass for COB type and PMMA for SMD type. The springs/clips are constructed from high-strength steel for secure ceiling mounting.
The LED driver is sourced from premium brands (LiFud/Eagleries as standard, with Philips/Osram as options) and features advanced specifications including 110/220-240VAC input voltage, 50/60Hz frequency, flicker-free operation, PF>0.5 (0.9 optional), THD<10%, and efficiency >85%. The IP20 rating ensures reliable performance in indoor environments.
The light source offers both COB and SMD options, delivering exceptional performance with CRI>90, color temperature options from warm white to daylight, and SDCM<3 for consistent color quality. With a lifetime exceeding 50,000 hours and high lumen output (90-110lm/W), these downlights offer long-term reliability and energy efficiency. The product is certified with CE and RoHS standards, backed by a 3/5 years warranty for complete peace of mind.