Electric scooter lighting and signalling: headlamps, taillights, turn signals, brake light, horn

18.05.2026 Scootify 10 min read

Lighting on an electric scooter is not cosmetic, and it is not gamer-grade RGB mod. It is the regulatory floor that decides whether a 60 km/h driver will see you on an unlit junction two seconds before contact. Unlike batteries or motors, headlamps are hard to sell with numbers — manufacturers usually write just “LED headlight”, without lumen ratings, without a beam pattern, without a StVZO § 67 type-approval mark. This article covers the five categories of scooter lighting, how brake lights and turn signals actually work, what Germany’s eKFV § 5, UK rental-trial rules and the European EN 17128 standard require, and what to look for in the “lighting” line of any spec sheet.

Five lighting devices on an electric scooter

Every light on a modern electric scooter falls into one of five groups:

Front white headlamp — the main forward beam, lights the road and marks the front of the vehicle.
Rear red taillight — steady red glow rearward, marks the back of the vehicle.
Brake light — either the same taillight gone brighter on deceleration, or a separate lamp that flashes.
Turn signals — flashing amber lamps at the front and rear; absent on lower-end scooters, standard on the premium tier.
Reflectors — passive: red at the rear, yellow on the sides (on rims or tyre sidewalls), sometimes yellow at the front.

Audible signalling (bell or horn) is a separate regulated requirement but is not strictly “lighting”. We treat it in the regulatory-minimum section, because Germany’s eKFV ties it to the same equipment clauses.

1. Front headlamp: lumens, beam shape, mounting

The front headlamp on a scooter does two parallel jobs: it lights the road ahead, and it marks the vehicle’s silhouette so that oncoming drivers see a light source from hundreds of metres away. These are different optical problems, which is why lumen ratings span from 150 on budget urban scooters to 2000 on high-performance off-road models.

Typical lumen range. Reviewers treat 300 lm as the baseline for safe night riding, 800–1200 lm for serious commuters and off-road, and 2000 lm as the market ceiling — Electric Scooter Insider compares it to car headlights on full beam (around 2400 lm). Examples from the real market:

NIU KQi2 Pro — 300 lm, iconic circular “halo” design tuned for urban visibility.
Apollo City Pro / Apollo Go — around 500–1000 lm, integrated into the deck of the handlebar for a cut-off beam without dazzling oncoming traffic.
Apollo Phantom V2 — 1000-lm class plus a vertical stem strip light for eye-level lateral visibility.
Mantis King GT / SPLACH Titan — 1000 lm.
NAMI Burn-E 2 / NAMI Klima — 2000 lm.
Kaabo Wolf King GT / Wolf King GTR / Dualtron Storm — dual optics 2 × 1000 lm = 2000 lm, scattering angle around 120°.

Beam shape — cut-off vs flood. Budget units mostly use a symmetric “flood” beam (an even yellow-white patch in front of the wheel) which dazzles oncoming drivers as effectively as it lights the road. Premium optics (Apollo Phantom 2.0, NAMI Burn-E 2) use a cut-off lens with a sharp upper edge of the beam — like an automotive low-beam under UN/ECE Regulation No. 113. That cuts glare for sustained traffic and at the same time extends the visible road by 30–50%.

Mounting height. A low-mounted headlamp (deck or front fender, ~20 cm above the road) throws shadows from every pothole and curb — that actually helps you see surface defects. A high-mounted one (steering column, ~100 cm) gives a flatter beam but reveals less about the asphalt texture. Many current models (Apollo Phantom V2, NAMI Burn-E 2) split the lamp into two levels — main on the stem plus auxiliary on the deck or stem — combining surface relief with longer throw.

2. Rear lamp and red rear reflector

The rear lamp on an electric scooter is a steady red light visible from behind, plus a separate red rear reflector (Rückstrahler) in the same or adjacent position. Germany’s eKFV § 5 Abs. 1 Satz 3 explicitly allows combining them: “Schlussleuchte und Rückstrahler dürfen in einem Gerät verbaut sein” (taillight and reflector may be housed in one device).

Technically this is almost always a LED strip or block rated 30–100 lm, driven by the same controller as the headlamp (they switch on synchronously through a single command on the display or handlebar). On sharing scooters (Lime Gen4, Bird Three, Voi) the rear lamp is active whenever the scooter is on — the operator does not leave the choice to the rider.

3. Brake light: steady glow vs flash

The brake light signals to road users behind that the scooter is decelerating. On e-scooters it comes in two distinct flavours that are worth distinguishing:

Steady glow. The same rear LED becomes 50–100% brighter whenever any brake is applied. Examples: Wolf King GT / Wolf King GTR — smoked taillight that “glows brighter (doesn’t flash)”; SPLACH Mukuta; NIU KQi2 Pro. This is closest to an automotive brake signal — drivers behind recognise it intuitively.

Flash. The taillight begins to strobe rapidly when brakes are applied. Examples: Mantis King GT — “flashes when braking”; SPLACH Titan — “taillights flash on braking”; SPLACH Turbo — “moonlight as brake lights”. Flashing is more attention-grabbing for peripheral vision, but in low-contrast daylight it can be confused with hazard lights or a stuck turn signal.

How brake-light triggering works. Three sensors are in play:

Mechanical brake-lever switch. A micro-switch in the brake lever closes when the lever is squeezed — the same signal that engages electronic regenerative braking. This is the fastest and most direct path; it is what serious manufacturers (NAMI, Apollo, Dualtron) use.
Throttle-release through the controller. The controller sees the throttle drop to zero and triggers the brake light as a “coasting” cue. This is the same signal that engages KERS regeneration on direct-drive hubs. Useful on descents where the rider is not touching the mechanical brake but the scooter is actively decelerating through regen.
Deceleration sensor. A platform-mounted accelerometer measures actual g-force, and triggers the brake light above a threshold (typically −2 m/s²) regardless of cause. This is the most sophisticated path; on mass-market scooters it is rare (on L1e-class electric motorcycles it is standard).

The mechanical trigger gives zero latency. The controller trigger fires on regen-only decelerations. The accelerometer trigger is an academic ideal but has not scaled to scooters yet because of component cost and false triggers on rough surfaces.

4. Turn signals and lateral visibility

Turn signals on an e-scooter were a feature of $2000+ flagships in 2019–2021 (Apollo Phantom, NAMI Burn-E, Dualtron Storm). They are slowly descending into the mid-range now.

Implementation. Two buttons on the left grip (typically left-right plus a centre for hazards), or a button on the display. Standard flash frequency is around 1.5 Hz (90 cycles per minute, like UN/ECE Regulation No. 6 for cars). Some models also expose hazard lights — both indicators flash in sync.

Models that ship with turn signals as stock:

NAMI Burn-E 2 / Burn-E 3 — indicators on the side and rear LED strips, plus a motorcycle-style horn.
Apollo Phantom (V2 and later) — two control buttons on the left side of the bar, direction indicated on the display; turn signals operate only on the rear deck lights, no front indicators.
Dualtron Storm Limited — front and rear indicators, plus separate deck lights.
Kaabo Wolf King GT / Mantis King GT — flashing turn signals synced to the steering column at the front and the controller box at the rear.
SPLACH Mukuta / SPLACH Turbo — integrated into stem and deck.

Models that don’t have turn signals as stock:

Xiaomi M365 / Mi 4 Pro, Segway-Ninebot MAX G30, Apollo City (not Pro), NIU KQi2/3, Razor — no turn signals. The aftermarket sells clamp-on turn signal kits (Amazon lists universal modules for Xiaomi + Ninebot G30 at around $30).

Lateral visibility. eKFV § 5 Abs. 3 explicitly requires “seitliche Kennzeichnung… mit gelben Rückstrahlern nach beiden Seiten wirkend” — side marking with yellow reflectors visible from both sides — or continuous retro-reflective stripes on tyres or rims of front and rear wheels. That means every e-scooter legally sold in Germany must have smartphone-sized yellow reflectors on the rims or strips on the tyres. Off-road models often replace this with RGB deck under-glow LED strips (NAMI, Kaabo, SPLACH Titan), which formally do not satisfy eKFV § 5 — which is part of why off-road scooters never earn a Bauartgenehmigung (ABE) for German public roads.

5. Audible signalling: bell and horn

eKFV § 5 Abs. 1 in the 2019 wording requires “mindestens einer helltönenden Glocke” — at least one “bright-sounding bell”. The text explicitly forbids sirens or other acoustic devices that do not comply with UN/ECE Regulation No. 28 for category L3 (motorcycles).

In practice this lands in three shapes:

Bicycle mechanical bell — the cheapest and most common option on entry-level scooters (Xiaomi M365, Segway-Ninebot MAX G30, NIU KQi2). Works without power. Loudness 70–80 dB at 2 m, frequency around 1500 Hz.
Electric horn (e-horn) — a copy of the automotive horn. On premium (NAMI Burn-E 2 — “motorcycle style horn”). Loudness 85–95 dB, power 5–15 W. Powered from the main battery via a dedicated button on the left grip.
Combined ringer + horn — on some Inokim and Apollo Phantom models: short press — “ding” of the bell, long press — real horn.

EN 17128:2020 requires for PLEV category an audible warning device per ISO 14878:2015 (the standard for bicycle bells) — a softer bar that allows the plain mechanical bell.

6. Regulatory minimums: EU, UK, US

This is the load-bearing section. Lighting is one of the few categories where the law defines a floor below which sale and use are prohibited.

Germany — eKFV § 5

The complete obligatory lighting set in the 2019 version of the regulation:

Front white headlamp (Scheinwerfer) — points to § 67 StVZO for bicycles: a minimum of 10 lux at 10 m, K-number Bauartgenehmigung.
Red rear taillight (Schlussleuchte) — steady, not flashing.
Red rear reflector — may be housed in the same body as the Schlussleuchte (§ 5 Abs. 1 Satz 3).
Side marking — yellow reflectors visible from both sides, or retro-reflective stripes on the wheels (§ 5 Abs. 3).
Turn signals (Fahrtrichtungsanzeiger) — optional (“zulässig”) in the 2019 version; after the 2024 eKFV reform turn signals became mandatory for single-track devices (§ 5 Abs. 4 in the new wording).
Bell (§ 5 Abs. 1 — helltönende Glocke).

Lighting may be removable — the clause “Die lichttechnischen Einrichtungen dürfen abnehmbar sein” lets the rider detach a lamp while parked to avoid theft. But the lights must be fitted while the vehicle is moving. No “daylight-only” exception exists in the eKFV — lights are on at all times.

United Kingdom — rental trial scooters

The UK Department for Transport keeps trial rental programmes (extended to 31 May 2026) under a lighter regulatory layer. The official gov.uk user guidance does not require the rider to bring their own lighting (rental scooters ship with a headlamp and red rear lamp as standard, activated on every ride). What it does require is one thing — “wear light-coloured or fluorescent clothing so that other road users can see you”. Helmets are recommended but not mandatory.

Privately-owned (non-trial) e-scooters remain illegal on UK public roads and pavements, so there is no formal lighting standard for them — they simply cannot be used.

Europe — EN 17128:2020

EN 17128:2020 is the standard for PLEV (Personal Light Electric Vehicles) ≤ 100 V DC, published on 21 October 2020. It indirectly references:

ISO 6742-2:2015 — the standard for bicycle-class reflectors. It defines minimum area, viewing angle, and retro-reflective efficiency in mcd/lx/m².
ISO 14878:2015 — the standard for audible warning devices (bells, horns) on bicycles.

Exact numerical thresholds inside EN 17128 sit behind a paywall, but the general rule is: a PLEV must have front white light + rear red light + rear red reflector + audible warning device. Turn signals are not required by the standard, but they are permitted.

United States — ASTM F2641

ASTM F2641 covers test methods for recreational electric scooters ≤ 32 km/h. It describes the reflectance test methodology for passive reflectors but does not require active lighting on child recreational models. That contrasts sharply with eKFV: Razor E100 ships in the US without any active lighting, but the same unit in Germany would need a full lighting kit to earn a Bauartgenehmigung — which is why the Razor E100 is officially classified as a toy in the EU, not a vehicle.

7. Real-world combinations on popular models

Model	Headlamp	Rear lamp	Turn signals	Horn / bell	Brake-light trigger
Xiaomi M365 / 4 Pro	LED ~150–300 lm	LED + reflector	none	mechanical bell	mechanical lever
Segway-Ninebot MAX G30	LED ~300 lm	LED + brake light	none	mechanical bell	mechanical lever + controller
Apollo City / City Pro	LED ~500–1000 lm	LED strip + brake light	none	mechanical bell	controller on throttle release
Apollo Phantom V2	1000 lm + stem strip	deck LED + brake	yes (rear only)	bell + horn	mechanical lever
NIU KQi2 Pro	300 lm halo	LED brighter	none	mechanical bell	mechanical lever
Mantis King GT	1000 lm	flash brake	yes (all 4 corners)	horn	mechanical lever
SPLACH Titan	1000 lm	flash brake	none	horn	mechanical lever
NAMI Burn-E 2 / Klima	2000 lm	LED + brake	yes	motorcycle horn	mechanical lever
Kaabo Wolf King GT/GTR	2 × 1000 lm	smoked brighter	yes	horn	mechanical lever
Dualtron Storm	standard LED	LED + brake	yes	horn	mechanical lever
Razor E100 (child)	none	reflector only	none	mechanical bell	none
Lime Gen4 / Bird Three (sharing)	always on	always on	none	bell	controller + brake-lever

Note for sharing: Bird Three adds AEB (Autonomous Emergency Braking) and a dual hand-brake system; both operators (Lime + Bird) keep lights permanently on via firmware — the rider cannot turn lights off mid-trip.

Checklist: what to look for in the “lighting” line

Headlamp ≥ 300 lm for urban night riding; ≥ 800 lm for off-road and unlit routes.
Cut-off lens rather than a symmetric flood — less glare for oncoming, 30–50% more usable lane length.
Brake light that grows brighter, not flashing — fewer chances of being mistaken for a stuck turn signal.
Brake-light trigger on both the mechanical lever and the controller — so it lights up under disc braking and regen braking alike.
Turn signals — standard on adult performance scooters; a nice-to-have on urban commuters, but a $30 aftermarket kit covers any model without them.
Side reflectors or retro-reflective stripe on the wheels — for legal use in the EU this is mandatory (eKFV § 5 Abs. 3).
Lateral visibility at eye level — a vertical stem strip light (like on the Apollo Phantom V2) is radically more useful than a low-mounted headlamp when another car is pulling out from an alley.
Horn ≥ 85 dB for regular traffic; a mechanical bell is sufficient for pedestrian zones and bike lanes.

The article on controllers and BMS electronics explains exactly how the controller detects brake-lever input and re-routes the signal to the brake light — the same trigger that engages regenerative braking on direct-drive hubs. The brakes article explains why two independent braking systems are mandatory under eKFV § 4. And the safety gear and traffic rules chapter covers how to actually behave with a well-lit scooter in evening traffic.