The technical side of the issue of models from the review is presented in the comparative table of characteristics of LED lamps. You can independently select LED light in the subsection of the autolamp catalog of the same name.

Well-defined cut-off line, long service life, price.
The diameter of the radiator may be larger than the mounting hole in the headlight.

To replace the standard halogen lamps in the headlights and fog lights, the Baxster SE-Series H4 6000K kit for the H4 base is well suited. With low energy consumption, it illuminates the road many times better than "halogens".

The lamp body is made of aluminium alloy, while meeting the standards for installation in the headlight seat. Problems sometimes arise only due to the fact that the diameter of the cooling radiator may be slightly larger than the mounting hole in the headlight. However, Baxster SE-Series H4 6000K lamps are usually installed without the need for any modifications.

The model is based on the Korean Lattice chip. The temperature of the light flux from the lamp is about 6000K, which is as close as possible to natural daylight. Light with such characteristics provides an improved level of illumination of the roadway and finishes at longer distances. Also, the lamp will please with high luminous flux - 2600 lm.

The location of the LEDs in the design of the lamp coincides with the location of the incandescent filaments in regular halogen lamps, and their shape creates well-defined cut-off boundaries of the glow. The light from the headlights of the car will have excellent distribution and will not blind the oncoming traffic. Finally, the Baxster SE-Series H4 6000K impresses with its long service life (up to 20,000 hours during tests) along with the affordable price for a set of two lamps.

Uniform and precise light beam, dual heat dissipation system with built-in fan, 12/24V power supply, compact design, price.
There are no significant downsides.

With a body size only slightly larger than standard halogens, the Narva Range Performance LED H4 illuminates the road by an order of magnitude better. Moreover, it easily fits into the headlights of most cars with an appropriate base.

All components of the lamp are sharpened into a compact body. And this, for a moment, is diode light sources, integrated electronic control units for controlling LEDs and a double heat dissipation system. The lamp is cooled by an active built-in fan coupled with a passive aluminium radiator. They effectively dissipate heat even in the compact headlights of subcompacts. And if overheating cannot be avoided, the constant current driver automatically reduces the brightness of the diodes to normal temperatures in order to extend their service life.

The color temperature of the Narva Range Performance LED H4 light sources is approximately 6500K. The cold light from the lamp increases the concentration of attention on the road and disperses drowsiness. In addition, it looks stylish from the side. We add here a clear cut-off line along with the absence of light from oncoming drivers - you will not find the best option in this price category for branded car lamps during the day with fire.

For the model, compatibility with 12/24 V power is declared. This means that it will fit both cars and trucks. Increased light output, long service life and loyal pricing are the three pillars on which the Narva Range Performance LED H4 LED lamp rests. The package includes two headlight bulbs.

Uniform and precise light beam, dual heat dissipation system with built-in fan, 12/24V power supply.
There are no significant downsides.

Philips products consistently occupy the first lines of the podium in the category of automotive lamps. She is preferred for excellent and uniform luminosity, as well as a long service life. The Ultinon Essential LED lamp for the H4 base was no exception to the rule.

The model emits cold white light with a temperature of 6500K. Lamps of this order allow you to stand out from the general flow of cars and can be used as elements of external car tuning. Moreover, the light beam from Philips Ultinon Essential LED H4 is uniform and accurate - with the correct location and proper adjustment of the headlights, excellent visibility of the road situation is provided and possible blinding of other drivers is prevented.

The lamp is assembled in a compact monoblock housing. The model will fit most cars with an H4 base without any modifications. It is also suitable for machines with an onboard supply voltage of 24 V. The guarantor of long-term operation of the lamp at the maximum brightness level is a double heat dissipation system with a built-in fan and an anodized aluminium heatsink.

For the correct "landing" in the car headlight socket, the Philips Ultinon Essential LED H4 comes with additional connecting rings. They allow you to perfectly align the lamp in the seat in order to provide optimal illumination and improve road safety in general. Philips LED lamp kit is guaranteed to last 1500 hours.

Well-defined cut-off line, long service life, 12/24 V power supply.
The driver inside the heatsink is not protected from moisture and dust.

The German company Osram has made a name for itself in high-end automotive lighting. Lamps from it are used both on board cars and trucks. The LEDriving HL H4 Gen2 9726CW is a replacement for standard H4 bulbs.

The lamp is designed for combined low beam and high beam. In its design, there are 12 LEDs - 6 on each side, which are placed in the standard position of the incandescent filaments in halogen lamps. Osram LEDriving HL H4 Gen2 9726CW produces a clear cut-off line and evenly scatters light without blinding oncoming traffic.

The white light of the lamp with a temperature of 6000K contrasts objects on the road and has a slightly chilly blue tint. The heat dissipation system of the model is passive - it is represented by a radiator that effectively removes heat from the LED chip. At the same time, the driver inside the heatsink is not protected from dust and moisture.

The model is installed in a standard H4 base and is connected directly to the car's on-board electrical network 12/24 V. The service life for it is declared from 2500 hours. As a bonus, those who buy the lamp receive a 5-year product warranty directly from the manufacturer. In some cases, the user will have to purchase only special "tricks" that adapt the resistance measured by the on-board computer to the required level so that light errors are not displayed on the dashboard.

Rich white light, perfect beam shape, AirFlux heat dissipation system, CANbus adapters, long service life.
High cost.

Philips X-treme Ultinon LED Gen2 H4 is a great alternative to xenon or stock halogen headlights. The model emits rich white light, which is close to daylight in terms of basic indicators.

At the heart of the model is a premium Lumileds LUXEON Altilon SMD diode chip. The light beam from the lamp has an perfect shape and illuminates the road without dazzling other drivers. According to the manufacturer, Philips X-treme Ultinon LED Gen2 H4 provides increased brightness up to 250%. The daylight effect is also achieved thanks to bright white light with a color temperature of 5800K.

An important factor in the operation of LED car lamps is heat dissipation. The model is equipped with the AirFlux heat dissipation system, which provides a stable luminous flux and LED life of about 5000 hours. Issues of stable operation of automotive electronics and elimination of errors are occupied by special CANbus adapters.

The operating voltage of the lamp is 12 V, which makes it possible to install it in the headlights of cars. The only deterrent from the momentary acquisition of the model is the high cost. You will have to fork out for its purchase, which more than pays off in the long term with consistently high brightness indicators, an excellent cut-off line and the highest quality of components with advanced characteristics.