Customer Questions

❓ Customer Questions

Q: What is the difference between D1S and D3S bulbs?
A: Both are Xenon HID bulbs. D1S bulbs are commonly used in older vehicles, while D3S bulbs are designed for newer models and are mercury-free. Both offer the same brightness and performance.

Q: Are D1S and D3S bulbs interchangeable?
A: No. They use different fittings. Always replace your bulb with the exact type your vehicle requires. Check your owner’s manual or current bulb before ordering.

Q: How do I know which bulb my car needs?
A: The easiest way is to check your existing bulb for a marking (D1S or D3S). You can also check your vehicle’s handbook or search online by make/model/year.

Q: Are TTRP bulbs as good as OEM brands?
A: Yes! Our customers regularly report performance equal to — or better than — big brand bulbs, at a fraction of the price. Bright, reliable, and built to last.

Q: How long do TTRP HID bulbs last?
A: On average, HID bulbs last 2,000–3,000 hours. With normal driving, that’s several years of use. We also offer warranty support for peace of mind.

Q: Are they easy to install?
A: Yes. Most customers install them at home with basic tools. If you’re unsure, a quick YouTube search or a local garage can help. They are direct replacements for your factory bulbs.