GT-COB3838-XX

Product catalog summary

Product Description: The Getian COB series features a mirror-surface aluminum base with a large luminous area and circular chip array design. It is optimized for high-end professional commercial lighting applications, offering high light efficacy up to 170 lm/w and a CRI up to 98. This series is suitable for replacing 50-500W commercial halogen and incandescent lamps in various lighting applications such as downlights, track lights, and projector lamps.

Key Features:

High luminous efficacy of 170 lm/w
Mirror-surface aluminum base
High-intensity circular chip array
RoHS compliant, EN62471
Over 50,000 hours of operation
Super high CRI
Available in Mac Adam 3 or 5 steps

Specifications:

Dimensions: 38x38 mm
Luminous Area Diameter: 35.5 mm
Beam Angle: 120 degrees
Color Temperature: 4000K to 5000K
Luminous Efficacy: 90 to 180 lm/w
Color Rendering Index: 70 to 98
Operating Temperature: -40 to +75°C
Storage Temperature: -40 to +85°C

Electrical Characteristics:

Standard Power: 117.4W and 169W
Max Current: 4500mA and 3240mA
Thermal Resistance: 0.22°C/W and 0.15°C/W

Reliability Tests: The product undergoes various tests including aging tests, high and low temperature storage, high temperature and humidity tests, temperature shock, and ESD tests to ensure durability and performance.

Packaging: The standard packaging includes trays, aluminum foil bags, and cartons, with specific quantities per package.

Notes and Recommendations:

Do not press the emitting surface or pour out products from trays.
Use thermal grease with conductivity >2.5 and ensure it is inclusion-free.
Operate within rated parameters and use constant current drivers.
Protect against ESD by using anti-static measures.
Avoid direct eye exposure to the bright light emitted by the LED.

Catalog excerpts

Product Description Getian COB series (Mirror-surface aluminum ·high luminous efficacy 170lm/w base), large luminous area with circular chip ·mirror-surface aluminum base array design, is widely applied to high-end ·high intensity circular chip array professional commercial lighting with ultimate high light efficacy, CRI and heat conduction. ·Mac Adam 3 or 5 steps available ·smooth light quality up to 98 with smooth and cozy light quality which brings great experience of light. This series is optimized for down light, par light, spot light, track light and projector lamp etc, which commercial halogen lamp and incandescent lamp, etc. Application ·Indoor/outdoor commercial lighting; ·down light, track light, projector light, flood light, high bay light, street light etc. Shenzhen Getian Opto-electronics Co., Ltd Add: Bldg 55, Baotian 3rd road, xixiang, Baoan District , Shenzhen China, 518102 Tel: +86-755-29177598 Web: www.getiangroup.com E-mail: getianled@getiangr

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Characteristics Characteristics Dimension Beam Angle θ Color Temperature CCT Diameter of Luminous Area Storage Temperature Luminous Efficacy Color Rendering Index MacAdam ELlipse Hand Soldering (Lead-Free) HST Coding Rules Model Chip Size Beam Angle Brightness Grade Copyright©2015 Getian Group. All rights reserved.The information in this document is subject to change without notice.

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Max Current: 4500mA Pulse Current: 5750mA Thermal Resistance: 0.22°C/W Part Number Pure White Neutral White Max Current: 3240mA Pulse Current: 4140mA Thermal Resistance: 0.15°C/W Pure White Neutral White Part Number Notes： Above charts include the most regular specs for COB series for reference.Please consult sales representative for specs that are not listed or please visit www.getiangroup.com. Machine Tolerance ±3% on luminous flux. Copyright©2015 Getian Group. All rights reserved.The information in this document is subject to change withou

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Typical Spatial Distribution(Tc = 25°C) Intensity Distribution Diagram Intensity Distribution Curve Electrical Features (Tc = 25°C) Standard Power: 117.4W Copyright©2015 Getian Group. All rights reserved.The information in this document is subject to change without notice.

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Macadam 3 & 5 Step Ellipse Diagram COLOR SPACE ELLIPSE ROTATION ANGLE, Θ Single 3-step MacAdam ellipse Single 5-step MacAdam ellipse Single 3-step MacAdam ellipse Single 5-step MacAdam ellipse Single 3-step MacAdam ellipse Single 5-step MacAdam ellipse Single 3-step MacAdam ellipse Single 5-step MacAdam ellipse Single 3-step MacAdam ellipse Single 5-step MacAdam ellipse Copyright©2015 Getian Group. All rights reserved.The information in this document is subject to change without noti

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Reliability Tests Test Items Test Conditions Aging Test Aging Test High Temperature Storage High Temp & Humidity Temperature Shock Criteria for Judging LED Failure (Tc=25°C) Items Test Conditions Criteria for Judging LED Failure Forward Voltage Luminous Flux

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Packaging (Unit:mm) Standard packaging: Tray:15pcs/tray Aluminum Foil bag:135pcs/bag Carton:810pcs/carton Copyright©2015 Getian Group. All rights reserved.The information in this document is subject to change without notice.

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Notes Product Specifications This is a product family data sheet without extra emphasis on a specific model. The specifications in the document refers to its general value under certain test conditions. Please consult sales representative or technical people if encounters specs that are not listed. (Tolerance should be considered). Operation Tips 1. Please do not press emitting surface; 2. Please do not pour out products from trays or overlay them; 3. Keep the power supply lines 2-3mm striped and tin immersed; 4. Do not touch the emitting surface or the white dam by the soldering iron during...

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