Novsight LED Headlight Bulbs Review and US Legality (2026)
Disclosure: DanPicks may earn a commission if you buy through links on this page. It does not change the price you pay or what I write. This is a research-based article: I compiled it from manufacturer specs, third-party measurements and public reviews, and I have not tested these products myself. How I review.
Short answer: Novsight’s LED replacement bulbs are cheap ($84.68–$172.99 a pair or set) and heavily marketed on brightness, but NHTSA wrote in February 2024 that no LED light source is currently permitted in a replaceable-bulb headlamp, so for on-road headlights in the US the compliant route is a complete headlamp assembly certified to FMVSS No. 108, not a bulb swap.
This is a research-based review. I have not installed these bulbs. Prices and claims come from novsights.com store data (USD) on October 21, 2026. The legal section quotes NHTSA’s February 13, 2024 interpretation letter. I am not a lawyer; this is not legal advice.
Part 1: Are LED replacement bulbs legal in US headlights?
Short answer: not under federal rules, as of NHTSA’s latest letter I found.
US headlamps are regulated by FMVSS No. 108 (Federal Motor Vehicle Safety Standard 108, “Lamps, reflective devices, and associated equipment”). Most cars with halogen bulbs have a replaceable bulb headlamp: the housing and the bulb are separate, and the bulb must meet a design registered with NHTSA.
On February 13, 2024, NHTSA’s Office of the Chief Counsel wrote:
“While LED light sources that are part of an integral beam headlamp are permitted as noted above, no LED light source is currently permitted to be used in a replaceable bulb headlamp.”
“As of the date of this letter, no submission that includes LEDs as the light source for a replaceable bulb headlamp has been listed in the docket. Therefore, no LED replaceable light source may be used in a replaceable bulb headlamp.”
On who enforces it:
“While NHTSA regulates the manufacture and sale of light sources, it generally does not regulate the modifications individuals make to their own vehicles. It is therefore left to State law to address installation of an LED replaceable light source in a headlamp.”
What that means in plain terms:
- Making and selling LED bulbs for halogen headlamps is the part federal law covers; NHTSA says these bulbs “do not conform to the requirements of FMVSS No. 108.”
- Installing one in your own car is a state-law question. Rules and enforcement vary by state; check yours.
- LED headlights are legal when they come as a complete integral beam headlamp (housing, lens and LEDs as one certified unit) that meets FMVSS No. 108. That is how factory LED headlights work.
The letter explains the reason: the bulb rules are “intended to support light source interchangeability.” Each replaceable bulb must match dimensions and electrical specifications registered with NHTSA, so the headlamp’s reflector or lens works as designed with any compliant bulb. A bulb with a different light source is outside that system.
A trade article (The Auto Wire, October 13, 2026) reports NHTSA has started work on updating headlamp rules. I have not read that notice, and the 2024 letter is the most recent official statement I could verify.
Part 2: The Novsight bulbs
| Series | Example | Price (Oct 21, 2026) | Novsight’s claims |
|---|---|---|---|
| N99 (wireless, near-OEM size) | H11/H8/H9/H16, 2 bulbs | $89.00 (list $129.99) | 100 W, 24,000 lm per set, 6,500K, built-in CAN bus driver, “700% brighter” than halogen |
| N99 combo | 9005 + H11, 4 bulbs | $172.99 (list $249.99) | same |
| N67 Pro (fan-cooled) | 9007/HB5, 2 bulbs | $84.68 (list $114.99) | 140 W, 30,000 lm, 12,000 RPM fan, IP68, “800% brighter” |
| N70 | 9004/9007/9012, 2 bulbs | $159.00–$169.00 | 240 W, 50,000 lm |
Novsight also sells vehicle-specific bulb kits (for example Honda Accord, Nissan Altima, Ford F-150) from about $49.90 to $304.
How to read these claims
- The lumen figures are Novsight’s own claims. I found no independent photometric test of these bulbs.
- Lumens out of a bulb are not light on the road. In a halogen reflector, beam pattern and cutoff decide whether you see better or just blind others. FMVSS No. 108 tests the whole headlamp’s beam at specific points for that reason.
- Phrases like “spot deer at 400 yards” on the N99 listing are marketing, not measurements.
- None of the Novsight bulb descriptions I scanned on October 21, 2026 claimed DOT or FMVSS No. 108 compliance. The one Novsight product I saw marked “US DOT Certified” is a complete headlight assembly (CYBEREYE 9” for Jeep Wrangler JL and Gladiator JT, $1,499), which is the integral-beam route NHTSA allows. That certification is Novsight’s claim; I did not verify it.
Pros
- Low price for the category; frequent discounts below list.
- N99 bulbs are marketed as near halogen size with a built-in CAN bus driver, which Novsight says avoids extra wiring on many cars.
- Wide fitment list, including vehicle-specific kits.
Cons
- Not permitted under FMVSS No. 108 for replaceable-bulb headlamps, per NHTSA’s 2024 letter; state rules decide what happens if you install them.
- Brightness claims are unverified, and more lumens in the wrong housing can mean more glare for others.
- Fan-cooled models (N67 Pro) add a moving part that can fail.
Who this suits, and who it doesn’t
Consider Novsight bulbs only for: off-road-only vehicles and uses where your state allows them. Check your state’s rules first.
Not for: anyone who wants street-legal headlights on a car with halogen reflector or projector housings. Look for a complete headlamp assembly certified to FMVSS No. 108 for your vehicle, or stick with halogen bulbs that meet the standard.
Related: Autel OBD2 scanners for home mechanics
Sources
All read on October 21, 2026.
- NHTSA Office of the Chief Counsel, letter to Mark Baker (Soft Lights), February 13, 2024 (signed by John Donaldson, Acting Chief Counsel). Listed on NHTSA’s interpretations database: nhtsa.gov. nhtsa.gov blocked my automated reader, so I quoted from the PDF copy published by the recipient: softlights.org PDF
- Novsight store product data (prices, claims, DOT wording): novsights.com
- The Auto Wire, NHTSA and headlight glare (October 13, 2026): theautowire.com