

💡 Light up your drive with brilliance and confidence!
The RCP D4S6 Xenon HID bulbs deliver a powerful 3200 lumen output at a crisp 6000K diamond white color temperature, offering 3x the brightness of standard halogen bulbs. Designed for safety and longevity, these 35W bulbs feature anti-UV quartz glass and IP68 waterproofing for up to 3000 hours of consistent, glare-free illumination. Compatible with D4S/D4R lamp optics, they provide a seamless plug-and-play upgrade to elevate your nighttime driving experience.






| ASIN | B01KSTL2Z4 |
| Auto Part Position | Front |
| Best Sellers Rank | #47,443 in Automotive ( See Top 100 in Automotive ) #308 in Automotive Headlight Bulbs |
| Brand | RCP |
| Brightness | 3200 Lumen |
| Color | 6000K |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,478) |
| Date First Available | August 22, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 5.6 ounces |
| Item model number | V4-D4S6 |
| Light Output Maximum | 3200 Lumens |
| Manufacturer | RCP |
| Manufacturer Part Number | V4-D4S6 |
| Mirror Lighting Type | automotive-exterior-headlight-bulbs |
| OEM Part Number | 66440, 66440CBI, 42402, 42402C1, 42402CX, 42402XV, ect. |
| Operating Life | 3000 Hours |
| Package Dimensions | 4.8 x 3.62 x 2.36 inches |
| UPC | 712994089717 |
| Voltage | 12 Volts |
A**A
great bulb option at a great price point
very happy with the light output and color of the bulbs. very bright and fit perfectly. installation was easy once i was able to get my headlights out a little for clearance. but that is b/c of my car.
A**N
Cheap and works!
I have a 2014 Mazda CX-5. They have history of having headlight ballast issues. My passenger side headlight was not working, low or high beam. I ordered these cheap ones in the case I was having a ballast system issue. It turned out to just be the bulb but for the price they are bright and white to where they actually match the color of my LED fog lights. Excellent value and will eventually order some brighter ones in the long run, but I am completely happy with these for now.
M**N
Good product but too powerful
Good product but not suitable for our car. It's a D4R, while ours requires a D2R. We had no idea. I wish I could get an exchange, but now I'm already in Nairobi, Kenya, Africa.
K**9
A great replacement bulb for my 2011 Lexus GS350
It fits my 2011 Lexus GS350 perfectly. These bulbs are the fraction of the cost. The bulbs come with white glove for installation. I highly recommend to buy them!
T**E
Wonderful
Perfect price and great product
X**H
Very bad life span. Only lasted 3 months.
I got these bulbs in August 2025 by January 2026 they burst and went out. I'd reccomend looking somewhere else and save your money.
M**N
Works perfectly on my 2011 CR-Z
The low beam on the passenger's side of my car blew out, so I had to get these. They come nicely packaged in a box with surrounding styrofoam and a plastic projector around the bulb. I had to watch a YouTube video to see how to replace the headlight, and it turned out to be pretty easy. The color is noticeably whiter than the OEM version, but that doesn't really bother me.
R**N
Bright and Easy to Install
Very bright and easy to install.
ع**ه
ممتاز بدرجة رهيبة
S**B
بعد التجربة جدا ممتازة
G**Y
They are excellent / Great quality product. The package arrived quickly nicely packed and are identical the OEM globes. Nice bright light with tinge of blue exactly as described and fitted in two minutes. Thankyou RCP
A**Y
The bulb on the right is what was replaced with the new product. It's kind of hard to tell but it is definitely brighter than the stock OEM one on the left; however, that is to say the OEM one is 10+ years old. This is definitely a bang for your buck, really easy to install, the bulbs come in a safety protection casing, which is then fitted into Styrofoam. It also came with special gloves for the installation, which is very generous! Will update in a month if it still works and/or of the brightness of the bulb.
M**D
وصلت الشحنه اليوم وقمت باستلامها وجيده ولكن لم تكون الاضاءة قوية جداً حسب شرح المنتج واتمنى ان لا تخرب في وقت سريع
Trustpilot
Hace 2 meses
Hace 3 semanas