OSRAM LEDguardian ROAD FLARE Signal TA20 LED warning light, LEDSL104

The OSRAM LEDguardian ROAD FLARE Signal TA20 (LEDSL104) is a rechargeable, magnetic LED warning light for emergency situations in road traffic. Its orange flashing light is described as visible through 360 degrees, and the claimed operating life is up to 15 hours. The light attaches magnetically to a vehicle, while the supplied USB-C cable is listed as 80 cm long.

At a glance

Flashing orange warning light described as visible through 360 degrees.
Rechargeable Li-ion battery with USB-C charging via the claimed 80 cm cable.
Magnetic attachment allows placement directly on a vehicle.
Manufacturer states up to 15 hours of operation. This is a claimed maximum, not a guaranteed runtime.

Price

£53.92Save 15%

Reference price: ~~£63.44~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Rechargeable operation avoids relying on a disposable battery for each use.
Magnetic mounting and a compact form are useful for keeping and deploying a warning light in a vehicle.
The listing gives a specific battery-life claim and USB-C charging method.

Technical specifications

16 specifications

Identity
Brand	OSRAM
Model	LEDSL104

Light
Light source	LED
Colour temperature	2000 Kelvin
Brightness	140 Lumen
Maximum light output	140 Lumens
Light colour	LED Orange/amber

Power and protection
Nominal voltage	3.7 V
Nominal power	2.20 W
Battery	Li-Ion rechargeable
Protection class	IP54
IK classification	IK07

Dimensions and installation
Width	90.6 mm
Length	72.6 mm
Weight listed	235 Grams
Fit type	Universal Fit

What to know before buying

Listing details to confirm

The listing says the light is approved, but does not identify the approval or its jurisdiction. It also advises checking local requirements outside Germany before use. The 12 Volts detail conflicts with the technical data's 3.7 V nominal voltage, so treat the technical operating voltage as unclear. The 140 Lumen and 140 Lumens entries differ only in wording. The stated 15-hour runtime is not tied to an operating mode. Check the selected listing for the exact USB-C cable and package contents.

What’s in the box

Included

1 × OSRAM LEDguardian ROAD FLARE Signal TA20

Who is it for?

A good fit for

Drivers wanting a rechargeable warning light to keep in a vehicle for roadside emergencies.
Buyers who prefer magnetic vehicle attachment and a flashing orange signal described as visible through 360 degrees.

Less suited to

Drivers who need confirmed approval for a specific country or use. The listing does not name the approval or establish local legal suitability.
Buyers who require a clearly specified runtime for a particular flashing mode or a confirmed vehicle-supply voltage.

OSRAM LEDguardian ROAD FLARE Signal TA20 LED warning light, LEDSL104 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 442 ratings

5 stars87%87%
4 stars8%8%
3 stars3%3%
2 stars1%1%
1 star1%1%

Aggregate ratings are strongly positive overall, with most ratings in the five-star category, but a smaller range of lower ratings is also present. The ratings do not explain customers’ reasons or establish specific strengths or faults. For buyers, they offer a general satisfaction signal rather than evidence about battery life, magnetic attachment or legal approval.