Underglow Lights: Legality, Installation and Style Tips
Underglow is back. Learn the types of underglow kits, how they're installed, where they're typically allowed, and how to style them without looking dated.
By Ayoub Farid · · 2 min read
Underglow was a 2000s tuner staple, and thanks to night-meet culture and LED tech it's back. Done well, it looks futuristic; done badly, it looks like a dated video game. Here's how to do it right.
Types of kits
- LED strips: the modern standard; flexible, bright, low power.
- App-controlled RGB: change colors and modes from your phone.
- Single-color kits: simpler and cleaner looking.
- Wheel-well lights: subtle glow inside the arches.
Installation basics
- Mount strips to flat, protected surfaces under side skirts and bumpers.
- Seal connectors against water and road salt.
- Fuse the power supply and use a switch so it's off while driving where required.
- Keep wires away from exhaust and moving parts.
If you're not confident with wiring, have a shop do it.
Legality
Rules vary widely. Common restrictions include:
- no red or blue lights visible from the front (often reserved for emergency vehicles)
- no flashing or rotating lights
- underglow allowed only while parked, or not at all
Check local rules; see are car mods legal?
Style tips
- One color looks more premium than a rainbow.
- Match the paint: cyan or purple on dark purples and blues; white on black cars.
- Keep the light source hidden. You want the glow, not the strip.
- Pair with a night look: see cyberpunk car design and lighting mods.
Preview the glow
CarForge's underglow lighting accessory and cyberpunk concept style show the look on your own car. The cyberpunk example on our homepage uses blue underglow with a color-shift wrap.
Frequently asked questions
Is underglow legal?
It depends on where you live. Many places restrict colors, flashing modes or use while driving.
Does underglow drain the battery?
LED kits draw little power, but leaving them on with the engine off for long periods can drain a battery.
What color underglow looks best?
A single color that complements the paint usually looks best; cyan, white and purple are popular.
Can underglow be installed without drilling?
Many kits use adhesive and clips, but secure mounting and sealed wiring are essential.
Try it on your own car
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