The Main Factors That Influence the Service Time of LED Light Bulb

Time:2017/6/7  keywords:LED Light Bulb, LED Flood Lights

LED light bulb is composed of LED light source, LED driver, heat dissipation device and lens. Pick up several IP65 100W  LED Flood Lights   ings from different brands in the lighting market and carry through high temperature aging and overcurrent aging test. The result shows that the service time of the majority fixtures in the market is caused by lumen depreciation and color decline of LED light source, some fixtures are determined by the service time of LED driver and the rest results from other reasons, for instance, broken lens leads to LED fixtures out of work normally.

LED Flood Light.jpgFor LED light source, the service time is very long, but anyhow, it is available only when installed in fixtures. There is some difference between LED working alone or working in fixtures, such as working condition, electrical parameter, thermal parameter, and so on. In accordance with specific analysis, there are four modes that caused LED light source invalidity.

Overheat stress failure: if the internal temperature of LED is larger than rated value or LED heat periodically changes, it will lead to LED failure.

Packaging failure: during the process of LED produce or packaging, some incorrect methods or other reasons would result in LED failure.

Over electrical stress failure: if the instant current of LED is very high or even higher than rated value during working, it will also occur to LED failure.

Chip failure: LED chip may stop working for the reasons of self-defect or other factors.

Among of them, if any mode ceases to be effective, LED may run out at different extent. Meanwhile, it is likely to cause other modes failure and indirectly cause LED failure.


Sports Light & Flood light
    NEW Edge™ Glare-free Tennis Court Light
    NEW Edge™ 180LPW Sport & Flood Lighting
    NEW Edge™ 160LPW Sport & Flood Lighting
    LitePro™ 140LPW Sport & Flood Lighting
Roadway Lighting
    Phantom™ Cobra Head Street Light
    Icon™ Tool-free Street Light
    Oasis™ 160LPW Street Light
    NEW Edge™ 180LPW Modular Street Light
High Bays for 80°C/176°F Ambient Temp
    NEW Edge™ 175LPW 80°C High Bay
    Edge™ 130LPW 80°C High Bay
Engineering & Heary-duty Lighting
    LED Victor™ Light
    LED Victor™ With Emergency Power Pack
    Hercu™ LED Bulk Head
Area Lighting & High Mast Lighting
    Orion™ 150LPW Shoebox Light
    Spider™ Garden Light
    NEW Edge™ 180LPW Area Light
    NEW Edge™ 160LPW Area Light
    NEW Edge™ 180LPW High Mast Light
    NEW Edge™ 160LPW High Mast Light
High Bays for General Uses
    Grapheneism™ 140LPW UFO High Bay
    LitePro™ Linea High Bay for High Rack Warehouses
    Apollo™ 170LPW High Bay
    LitePro™ High Power High Bay
    NEW Edge™ 180LPW High Bay
Wall Pack
    LitePro™ Adjustable Modular Wall Pack
    Diamond™ Die Cast Wall Pack
Canopy Lighting
    Stella™ LED Canopy Light
Tri - Proof Linear Luminaire
    Luna™ regular Tri - Proof Linear
    Luna™ Deep Dimming Tri - Proof Luminaire with Switchable CCT
System Introduction
    System Introduction