最近搜索

    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 909-3250
    • 製造零件編號 CXA1507-0000-000N00G227G
    个(每托盘 2 )
    HK$16.85
    Cree LED
    871 lm
    -
    8.9mm
    2700K
    14.8W
    CXA
    115 °
    70
    White
    36 V
    375mA
    15.85 x 15.85 x 1.7mm
    • RS庫存編號 244-4858
    • 製造零件編號 VLRK31Q1R2-GS08
    个(每带 2000 )
    HK$1.003
    Vishay
    -
    180 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 920-9408
    • 製造零件編號 ILO-05FF4-23NW-EC211.
    HK$198.19
    Intelligent LED Solutions
    3550 lm
    -
    23mm
    4000K
    -
    DURIS S 8
    120 °
    80
    White
    -
    750mA
    28 x 28 x 1.4mm
    • RS庫存編號 180-7183P
    • 製造零件編號 VLMV3100-GS08
    个 (以每卷裝提供)
    HK$2.553
    Vishay
    -
    10 mcd
    2.4mm
    -
    -
    VLMV3100
    -
    -
    Red
    3 V
    10mA
    3.5 x 2.8 x 1.75mm
    • RS庫存編號 809-2133
    • 製造零件編號 CXA1816-0000-000N0YK230H
    HK$33.70
    Cree LED
    -
    -
    -
    3000K
    38000mW
    XLamp CXA1816
    115 °
    -
    White
    36 V
    900mA
    17.85 x 17.85 x 1.7mm
    • RS庫存編號 180-8048P
    • 製造零件編號 VLDY1235G
    个 (以每卷裝提供)
    HK$2.784
    Vishay
    -
    35000 mcd
    -
    -
    -
    VLD
    -
    -
    Yellow
    -
    -
    -
    • RS庫存編號 180-8160P
    • 製造零件編號 VLMO30K1M2-GS08
    个 (以每卷裝提供)
    HK$2.10
    Vishay
    -
    28 mcd
    -
    -
    -
    VLMO30
    -
    -
    Orange
    -
    -
    -
    • RS庫存編號 180-8131P
    • 製造零件編號 VLMG1500-GS08
    个 (以每卷裝提供)
    HK$0.832
    Vishay
    -
    112 mcd
    -
    -
    -
    VLMG1500
    -
    -
    Green
    -
    -
    -
    • RS庫存編號 244-4857P
    • 製造零件編號 VLMYG30H2K1-GS08
    个 (以每卷裝提供)
    HK$1.624
    Vishay
    -
    9 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 180-7213P
    • 製造零件編號 VLMW1500-GS08
    个 (以每卷裝提供)
    HK$2.156
    Vishay
    -
    180 mcd
    -
    7000K
    -
    VLMW15
    -
    -
    White
    3.05 V
    5mA
    1 x 0.5 x 0.35mm
    • RS庫存編號 244-4846P
    • 製造零件編號 VLMKG3400-GS18
    个 (以每卷裝提供)
    HK$2.47
    Vishay
    -
    140 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 180-7119P
    • 製造零件編號 VLMY3100-GS08
    个 (以每卷裝提供)
    HK$1.714
    Vishay
    -
    10 mcd
    2.4mm
    -
    -
    VLMY310
    -
    -
    Yellow
    2.8 V
    10mA
    3 x 2.8 x 1.75mm
    • RS庫存編號 244-4861P
    • 製造零件編號 VLRK31R1S2-GS08
    个 (以每卷裝提供)
    HK$2.416
    Vishay
    -
    285 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 180-7136P
    • 製造零件編號 VLMY334BACB-GS08
    个 (以每卷裝提供)
    HK$2.334
    Vishay
    -
    4500 mcd
    2.4mm
    -
    -
    VLMY334
    -
    -
    Yellow
    2.8 V
    50mA
    3 x 2.8 x 1.75mm
    • RS庫存編號 180-8089P
    • 製造零件編號 VLMA3100-GS08
    个 (以每卷裝提供)
    HK$1.64
    Vishay
    -
    0.8 mcd
    -
    -
    -
    VLMA3100
    -
    -
    Yellow
    -
    -
    -
    • RS庫存編號 244-4850P
    • 製造零件編號 VLMS334AABB-GS08
    个 (以每卷裝提供)
    HK$2.688
    Vishay
    -
    2800 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 244-4859P
    • 製造零件編號 VLRK31Q1R2-GS08
    个 (以每卷裝提供)
    HK$2.39
    Vishay
    -
    180 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 244-4848P
    • 製造零件編號 VLMPG33N1P2-GS08
    个 (以每卷裝提供)
    HK$2.312
    Vishay
    -
    71 mcd
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 244-4844P
    • 製造零件編號 VLMK334BACB-GS08
    个 (以每卷裝提供)
    HK$2.372
    Vishay
    -
    4500 mcd
    2.4mm
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 180-7168P
    • 製造零件編號 VLMS31J1K2-GS08
    个 (以每卷裝提供)
    HK$2.304
    Vishay
    -
    11.2 mcd
    2.4mm
    -
    -
    VLMS31
    -
    -
    Red
    2.6 V
    10mA
    3.5 x 2.8 x 1.75mm
    每頁顯示的結果