D3S 4300K – these are xenon lamps with a 15% increased brightness, designed to replace original Osram or Philips lamps in cars with factory-installed xenon. If your standard lamps have burned out or lost brightness, this is the optimal solution for restoring quality light. The lamp price is 35 EUR per piece or 60 EUR for a set of 2 pieces, making the purchase economical when replacing both lamps.

We strongly recommend choosing xenon lamps with a color temperature of 4300K (Kelvin). Here are the key arguments in favor of this choice:
- All European car manufacturers install lamps with a temperature of 4300K at the factory.
- In many European countries, the use of lamps with a temperature above 5000K is legally prohibited.
- 4300K light corresponds to morning sunlight – it is natural, does not distort colors and does not create strain for the eyes and brain. While 5000K light (like summer midday sun) can cause discomfort and fatigue during prolonged driving.
- The human brain best perceives objects illuminated by 4300K light: grass remains green, asphalt – gray or black. Other color temperatures (6000K, 8000K) distort real colors, leading to increased visual strain and faster driver fatigue.
- Brightness (luminous flux in lumens) reaches its maximum precisely at 4300K. As the color temperature increases, brightness decreases.
For clarity, let's compare the brightness of different types of lamps:
| Lamp type / Color temperature |
Luminous flux (Lm) |
Color of light |
| Halogen lamp 55W / 3000K |
~1500 Lm |
Yellow |
| Xenon lamp 35W / 4300K |
~3200 Lm |
Warm white (recommended) |
| Xenon lamp 35W / 5000K |
~3000 Lm |
Cool white |
| Xenon lamp 35W / 6000K |
~2400 Lm |
White with a bluish tint |
| Xenon lamp 35W / 7000K |
~1800 Lm |
Blue |
| Xenon lamp 35W / 8000K |
~1500 Lm |
Blue-bluish |
As can be seen from the table, the brightness of the D3S 4300K xenon lamp is more than twice that of a standard halogen lamp, while power consumption is 26% lower.
Let's also dispel a common myth: it is believed that xenon lamps heat headlights significantly less than halogen lamps, and therefore the reflectors of xenon optics burn out less. In fact, the difference in heating is negligible. The filament temperature of a halogen lamp (55W) is about 410°C, the temperature of a xenon arc (35W) is about 390°C. The difference is only 5%, so the longevity of the reflector depends primarily on the quality of materials and operating conditions, not on the lamp type.
For a visual demonstration of the installation and operation of the D3S 4300K lamp, we recommend watching the video review:
The D3S lamp is intended for cars with factory xenon optics and a D3S socket. It provides stable, bright light with optimal color temperature, enhancing safety and comfort during night driving. Installation requires no modifications – the lamp is replaced as standard, like the original.
If you want to improve road illumination, restore the headlight's original brightness, or simply replace an old lamp – the D3S 4300K will be an excellent choice. It is a reliable, energy-efficient, and safe solution for modern cars with xenon headlights.