Car LED Bulb Circuit
Typically all car turn signal lamps are around 12 to 20 watt rated which are traditionally incandescent bulb types and produce much lower light intensities compared to LED lights. Here we learn how these lamps can be replaced with high efficiency, high intensity car LED bulbs.
The image below shows what could be a car LED lamp directly replaceable over the existing holder.
It shows a decent looking arrangement of flat, tiny SMD LEds in a circular pattern for enabling optimal distribution of light via the enclosed hind reflector.
The LED used here are the 3020 SMD LEDs, these tiny light emitting diodes are identical to the ordinary 5mm LEDs with their specs, however if we compare their light intensities, the witnessed difference appears to be huge, where the 3020 easily wins by an outstanding margin, that's why these LEDs are much preferred in place of the ordinary 5mm LEds nowadays.
The technical specifications of the 3020 LEDs are:
The image below shows what could be a car LED lamp directly replaceable over the existing holder.
It shows a decent looking arrangement of flat, tiny SMD LEds in a circular pattern for enabling optimal distribution of light via the enclosed hind reflector.
The LED used here are the 3020 SMD LEDs, these tiny light emitting diodes are identical to the ordinary 5mm LEDs with their specs, however if we compare their light intensities, the witnessed difference appears to be huge, where the 3020 easily wins by an outstanding margin, that's why these LEDs are much preferred in place of the ordinary 5mm LEds nowadays.
The technical specifications of the 3020 LEDs are:
Forward voltage: 3 to 3.2V
Forward current: 30mA optimal
Luminous Efficiency: 100-110lm/w
Size: 3.0x2.0x1.3mm
Lifetime: 50,000hrs
Forward current: 30mA optimal
Luminous Efficiency: 100-110lm/w
Size: 3.0x2.0x1.3mm
Lifetime: 50,000hrs
In the above picture, we can see the LEDs collected over pcs of PCB strips, tiled in a specific figured way.
The vertical PCBs are 7 in numbers, and have 4 LEDs on every strips.
One round PCB comprising of 22 LEDs can be seen situated over the vertical PCB structure.
The vertical PCBs hence incorporate 7 x 4 = 28 nos of 3020 LEDs, while the roundabout PCB mount 22 nos of LEds, giving an aggregate of 28 + 22 = 50 LEDs
These 50 LEDs are associated with structure 12 strings of 4 LEDs each, and a solitary string of 2 LEds.
Each of the 12 strings must have their own individual arrangement resistor (SMD) whose worth could be around 55 ohms 1/4 watt.
The single 2 Drove string must partner a different 250 ohm, 1/4 watt resistor.
These resistors demonstration like current limiters for shielding the LEds from auto alternator voltage fluctuationsand additionally help to keep the enlightenment level over all the Drove assembles as uniform as would be prudent.
The resistors can be introduced at the back side of the PCB strips.
The circuit outline for the proposed straightforward auto Drove light is demonstrated as follows:
circuit is in working, checked !
Our manufactory are covering area of 18,250 square meters (as big as two and a half football field). 6 production lines, and 150 employees. We produce 2,500,000 pcs of LED miniature bulbs and headlights every month. LED car bulb supplier
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