Guides & Tips

A Simple Way to Extend The Lifespan of 194 Led Bulb

Some of the motorists ever used T10 led bulb and put it in the sidelights, daytime running lights (DRL), license plate light, dome light or in other lights.

Typically, these LED bulbs have low power and current consumption. Normally, the LEDs can work for more than 50,000 hours in optimal conditions, but in the car, it sometimes can’t for over one month. First, the LED starts to flicker, and then it burns out altogether.

What is the reason for this?

The bulb manufacturer writes the “12V” marking. This voltage is the optimal voltage at which the LEDs in the bulb operate at almost maximum. And if you apply 12 V to this bulb, then it will serve at maximum brightness for a very long time.

So why does it burn out in a car? Initially, the voltage of the vehicle’s on-board network is 12.6 V. An overstatement of 12 is already visible. And the voltage of the wound-up vehicle network can reach up to 14.5 V. We add to all these various surges from switching high-power high or low beam bulbs, powerful voltage pulses, and magnetic interference when starting the engine from the starter. And we will not get the best network for powering LEDs, which, unlike incandescent bulbs, are very sensitive to all changes.

Since there is no control IC driver in some cheap led car lights, the bulb fails from overvoltage.

During my testing, I changed dozens of such led bulbs. Most of them did not work for over a year. In the end, I got tired and decided to look for a simpler way out.

LED bulbs

Simple voltage regulator for LEDs

To ensure comfortable operation for LEDs, I decided to make a simple stabilizer. Not complicated, any motorist can repeat it.

Everything is simple – the entrance is on the left, the exit is on the right. Such a stabilizer can withstand up to 1.5 A load, provided that it installed on the radiator. Naturally, for small bulbs, no radiator is needed.

Connect it to led bulb

All you need is to cut out the desired piece from the PCB. You do not need to poison the tracks – I cut out simple lines with an ordinary screwdriver.

Solder all the elements, and you did. It does not need to configure.

In the role of the bulb, the body works as a blower.

The plus of the circuit is that it is fashionable to use a car body as a radiator since the central output of the microcircuit housing connected to the minus.

That’s all; LEDs no longer fade. I’ve been traveling for more than a year and forgot about this problem, which I advise you.

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