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    COB LEDs

    COB (Chip on Board) LEDs are compact LED modules with a bright light output. They consist of a small square or circular substrate which houses multiple LED chips/dies. These are covered with a phosphor coating. The most common colour of COB LED is white, however there a few more colours available as the technology develops. How do they work?COB LEDs have a base substrate, made of aluminium or ceramic, on which the LED dies are mounted. The actual LEDs provide a blue light. The number of LED dies and their typical luminous flux determines the "brightness" of the COB LED.The layer of phosphor, which is an orangey-yellow colour, sits on top of the LED dies. The phosphor converts the blue LED dies into a white light. The type of phosphor creates different colour temperatures.What is colour temperature?Colour temperature describes the warmth or coolness of the LED light output. "Warm" COB LEDs offer a yellow-orange light output while "Cool" COB LEDs tend to be a bluer white. Colour temperature is measured in Kelvins with the symbol "K". What are the advantages of COB LEDs?• Higher LED density than traditional LED mounting process• No need for multiple soldering - just one package• Bright light outputUses for COB LEDs:• General purpose lighting• Downlights• High Bay lighting• Low Bay lighting• Spotlights• Solid State Lighting (SSL) replacements

    161 產品顯示為 COB LEDs

    • RS庫存編號 180-8048
    • 製造零件編號 VLDY1235G
    个(每托盘 20 )
    HK$2.784
    Vishay
    -
    35000 mcd
    -
    -
    -
    VLD
    -
    -
    Yellow
    -
    -
    -
    • RS庫存編號 180-7481
    • 製造零件編號 VLMA3100-GS08
    个(每带 1500 )
    HK$0.767
    Vishay
    -
    0.8 mcd
    -
    -
    -
    VLMA3100
    -
    -
    Yellow
    -
    -
    -
    • RS庫存編號 145-6099
    • 製造零件編號 CXA2530-0000-000N00T230G
    个(每套 100)
    HK$38.602
    Cree LED
    1682 lm, 3609 lm
    -
    19mm
    3000K
    65W
    CXA
    115 °
    90
    White
    36 V
    1250mA, 1600mA
    23.85 x 23.85 x 1.7mm
    • RS庫存編號 242-2254
    • 製造零件編號 PL-CN111-COB-4300-927-60D-G2
    HK$575.67
    Osram
    -
    -
    -
    2700K
    -
    -
    60 °
    -
    -
    -
    -
    -
    • RS庫存編號 242-2257
    • 製造零件編號 PL-CN35-COB-600-927-15D-G2
    HK$220.01
    Osram
    -
    -
    -
    2700K
    -
    -
    15 °
    -
    -
    -
    -
    -
    • RS庫存編號 242-2261
    • 製造零件編號 PL-CN35-COB-600-940-15D-G2
    HK$236.83
    Osram
    -
    -
    -
    4000K
    -
    -
    15 °
    -
    -
    -
    -
    -
    • RS庫存編號 162-7648
    • 製造零件編號 CXA2520-0000-000N00R250H
    个(每套 100)
    HK$48.939
    Cree LED
    -
    -
    -
    5000K
    47000mW
    XLamp CXA2520
    115 °
    -
    White
    36 V
    1250mA
    23.85 x 23.85 x 1.7mm
    • RS庫存編號 244-4850
    • 製造零件編號 VLMS334AABB-GS08
    个(每托盘 25 )
    HK$2.688
    Vishay
    -
    2800 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 180-7044
    • 製造零件編號 VLMY30K2M1-GS08
    个(每带 1500 )
    HK$0.818
    Vishay
    -
    22.4 mcd
    2.4mm
    -
    -
    VLMY30
    -
    -
    Yellow
    2.2 V
    2mA
    3.5 x 2.8 x 1.75mm
    • RS庫存編號 180-7042
    • 製造零件編號 VLMW1500-GS08
    个(每带 3000 )
    HK$0.968
    Vishay
    -
    180 mcd
    -
    7000K
    -
    VLMW15
    -
    -
    White
    3.05 V
    5mA
    1 x 0.5 x 0.35mm
    • RS庫存編號 244-4849
    • 製造零件編號 VLMS334AABB-GS08
    个(每带 1500 )
    HK$1.395
    Vishay
    -
    2800 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 809-1679
    • 製造零件編號 CXA1512-0000-000N00K427H
    HK$30.50
    Cree LED
    -
    -
    -
    2700K
    24000mW
    XLamp CXA1512
    115 °
    -
    White
    36 V
    600mA
    15.85 x 15.85 x 1.7mm
    • RS庫存編號 244-4844
    • 製造零件編號 VLMK334BACB-GS08
    个(每托盘 25 )
    HK$2.372
    Vishay
    -
    4500 mcd
    2.4mm
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 162-9749
    • 製造零件編號 CXB1304-0000-000C0UA427G
    个(每套 100)
    HK$15.872
    Cree LED
    364 lm, 392 lm
    -
    6mm
    2700K
    10W
    CXA2
    115 °
    90
    White
    9 V
    1000mA
    13.35 x 13.35 x 1.7mm
    • RS庫存編號 903-3655
    • 製造零件編號 COB-100W-W
    HK$570.40
    PowerLED
    11000 lm @ 3000 K
    -
    -
    3000K
    100W
    -
    120 °
    70
    White
    31.5 V
    4000 (Max.)mA
    46 x 40 x 2.2mm
    • RS庫存編號 180-7484
    • 製造零件編號 VLMG1500-GS08
    个(每带 3000 )
    HK$0.586
    Vishay
    -
    112 mcd
    -
    -
    -
    VLMG150
    -
    -
    Green
    -
    -
    -
    • RS庫存編號 809-2050
    • 製造零件編號 CXA1304-0000-000C0U9440H
    个(每托盘 2 )
    HK$15.60
    Cree LED
    -
    -
    -
    4000K
    10900mW
    XLamp CXA1304
    115 °
    -
    White
    9 V
    1000mA
    13.35 x 13.35 x 1.15mm
    • RS庫存編號 162-9750
    • 製造零件編號 CXB1304-0000-000C0UB230G
    个(每套 100)
    HK$15.872
    Cree LED
    392 lm, 453 lm
    -
    6mm
    3000K
    10W
    CXA2
    115 °
    90
    White
    9 V
    1000mA
    13.35 x 13.35 x 1.7mm
    • RS庫存編號 244-4855
    • 製造零件編號 VLMYG30H2K1-GS08
    个(每带 1500 )
    HK$0.789
    Vishay
    -
    9 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 162-9744
    • 製造零件編號 CXA2520-0000-000N00Q430G
    个(每套 100)
    HK$41.578
    Cree LED
    2226 lm, 2535 lm
    -
    19mm
    3000K
    47W
    CXA
    115 °
    80
    White
    36 V
    1250mA
    23.85 x 23.85 x 1.7mm
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