For in-vehicle equipment and more. We create future lighting systems.
Subminiature lamp ultra-small bulb (sizes: T3 T3.4 T4.2 T4.8) is a light source for automotive interior instrument panels and audio made by Toshiba Lighting. We also stock the 5.5V 125mA specification, which is used by automobile manufacturers, in addition to the standard 12V and 24V specifications. For more details, please contact us or refer to the catalog.
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basic information
**Main Features** - The characteristics of the lamp (current, brightness) and its lifespan change depending on the applied voltage. **Other Features** - **Inrush Current** → The cold resistance of the lamp filament is about 1/10 of its resistance when lit, which causes a large inrush current to flow at the moment the lamp is turned on. This current is referred to as inrush current. - **Flickering** → Frequent flickering can generally shorten the lifespan due to the effects of inrush current. - **Shock and Vibration** → Prolonged lighting of the lamp can cause the crystals in the filament to grow, weakening it and reducing its strength. - **Color Temperature and Efficiency** → Color temperature (K) is correlated with lamp efficiency (lm/W), and as shown in the graph, higher efficiency (lm/W) results in a higher color temperature. - **Surface Temperature of the Bulb** → The lamp operates by heating the filament to a high temperature, resulting in significant infrared radiation and a high surface temperature of the bulb. For more details, please contact us or refer to the catalog.
Price information
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Delivery Time
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Applications/Examples of results
○Light source for meters ○Light source for car audio
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Company information
In Japan and around the world, we have responded to the demands of the times. In the early 1900s, when the global automotive industry was in its infancy, Taiyo quickly established a parts supply business and has continued to grow alongside the development of the industry. With an unwavering mission to provide more valuable products and services in any era, Taiyo will continue to walk together with our customers in Japan and around the world.