Xenon lamps

 

Over time, the inventors came to the idea that the spiral can be replaced with a mixture of certain gases. The lamp will receive a bright light when placed in a flask with two electrodes under pressure, the mixture obtained by replacing the coil, with further ignition by a discharge with a high electric voltage. Such lamps are called gas-discharge lamps. And automobile lamps are called xenon because of the use of xenon gas with impurities as a "filler". Get more info here: best h11 LED bulb

 

Xenon lamps almost do not heat up and consume little electricity due to their high efficiency (almost 90%). Due to their ability not to heat up, the durability of car headlights is extended. The luminous flux of xenon lamps is much higher than that of halogen lamps. Due to the absence of a spiral sensitive to shock and shock, the resource is much larger.

 

But such lamps need “ballast” to work - a special ignition unit. At the beginning, it provides a start with a high voltage (about 25kV), after which, with a lower voltage (about 85V), it maintains the glow.

Xenon bulbs are more expensive than halogen bulbs. The ignition of the arc in the lamp occurs with some delay, and not immediately. For example, when blinking with a high beam, this delay is much more noticeable and can be annoying.

 

If the car does not initially have an auto-corrector and headlight washer, then they will need to be installed in case of an abnormal replacement of halogen lamps with xenon lamps . This will protect the driver from dazzle by ensuring the correct direction of the light beam and the cleanliness of the lens.

 

Most often, in practice, replacement of the diffuser is also required, especially if it has a corrugated surface. In addition to everything, it will be desirable to install lenses .

 

The correct adjustment and operation of xenon lamps must be treated very responsibly, with close attention, because the powerful luminous flux can dazzle drivers, possibly resulting in an emergency.

 

Xenon lamps are installed in the headlights for both low and high beam. But there are also combined - bi-xenon systems. They contain basically one bulb, and switching is done using a special shutter or by longitudinal movement of the bulb. The bi-xenon lamp is equipped with a metal screen for the correct formation of the luminous flux.

 

In cheap systems, when driving over bumps, this mechanism becomes loose. It is especially clearly seen how the light beam trembles when driving on uneven roads. There are also two-bulb systems (mainly at Mlux), which have not received their distribution.

 

LED lamp

The youngest lamps are LED, or they are also called LED. LED lamps can be very diverse. Initially, due to their low power, they were used as light in auxiliary lighting fixtures. But in the modern world, over time, kits have already appeared for replacing standard headlamps.

 

LEDs work very simply - under the influence of a current of a certain polarity, a semiconductor crystal emits light. The light source can be of any size. It can be scaled both in quantity and size.

 

Due to the difficulty of focusing, a large matrix for the headlight will not work. But this can be remedied by the recently introduced super-power LEDs.

 

LED lamps have many advantages: high reliability and efficiency, long service life, low energy consumption (compared to halogen lamps, it is almost 10 times less).

 

An LED is a current device and it is not allowed to connect it to a power source directly, otherwise it may burn out. In this regard, a limiting resistor is installed for low-power auxiliary lighting lamps. But it is not suitable for powerful LED lamps, so in this case they use a special current stabilizer - a driver. Most drivers can operate over a wide voltage range (9-32V). This makes it possible to use powerful LED lamps, both on cars and trucks.