【HID D4 5500K/35W | Mercury-Free D4 Standard Compatible Bulb】

You may be wondering about headlight bulb replacement, but the difference between the D2 and D4 standards can be hard to understand for many people.

HID D4 5500K/35W is a replacement bulb compatible with the D4 standard that does not use mercury. It is used in vehicles that have adopted D4-standard bulbs in recent years, such as Lexus, Toyota, and Daihatsu.

In appearance, it looks similar to the conventional D2R/D2S, but you can’t simply replace it in the same way. While the D2R/D2S operates at a driving voltage of 85V, the D4 standard is 42V, so you cannot swap only the bulb—you must choose one that matches the vehicle’s required standard.

If you are considering a bulb replacement for a vehicle that uses the D4 standard, first check the currently installed bulb standard and the vehicle specifications. Since compatibility may vary depending on the vehicle model and year, it’s safer to confirm while checking the vehicle rather than purchasing without knowing.

At LOGON, we don’t just sell bulbs—we guide you after confirming your vehicle specifications and the current condition of your lights. Let’s check together, including how to choose the color tone and how it will look after replacement.

■ Main Specifications / Specs

【Basic Information】
Product name: HID D4 5500K/35W
Type: HID replacement bulb
Standard: D4
Color temperature: 5500K
Power consumption: 35W
Mercury: None

【Notes】
The driving voltage differs between the D2R/D2S and D4 standards, so they cannot be used interchangeably.
Before installation, please confirm the bulb standard required by your vehicle.
Compatibility may vary depending on the vehicle model, year, and grade.