Silva Explore 4RC Rechargeable Head Torch, 400 Lumens

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Product guide

Silva Explore 4RC Rechargeable Head Torch, 400 Lumens

The Silva Explore 4RC is a rechargeable head torch with white, red and orange light, plus three brightness levels. Its listed maximum output is 400 lumens, while the specified 20-hour runtime applies only to the 10-lumen minimum setting.

At a glance

White, red and orange light modes are intended for general outdoor lighting, night-vision preservation and map reading respectively.
Silva Intelligent Light combines a long-reach spotlight with a close-range floodlight, according to the listing.
USB recharging and a built-in battery avoid routine disposable-battery replacement.
The stated runtime ranges from 2 hours 30 minutes at maximum to 20 hours at minimum brightness.

Price

£37.98Save 37%

Reference price: ~~£59.99~~

Price checked: 13 Nov 2026

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Often bought together

Silva Head Torch Rechargeable USB - Explore 4RC - 400 Lumen LED Head Lamp - 3 Brightness Levels & 3 LED Colours - Waterproof

£54.99

Pros and cons

Pros

Three light colours offer options for different tasks, including red for preserving night vision and orange for reading maps.
A long-reach and close-range beam combination can help illuminate both distant and nearby areas.
The listed accessories include a headband and helmet attachment, allowing different wearing setups.

Cons

The longest stated runtime is limited to the 10-lumen minimum setting. The maximum setting is specified for 2 hours 30 minutes.

Technical specifications

20 specifications

Identity
Brand	Silva
Model	37821

Light output and operation
Maximum white brightness	400 Lumens
Light source	LED
Light sources	3
Listed runtime	20 hours
Maximum-setting output, distance and runtime	MAX: 400 lm - 85 m - 2 h 30 min.
Medium-setting output, distance and runtime	MED: 200 lm - 60 m - 3 h 30 min.
Minimum-setting output, distance and runtime	MIN: 10 lm - 8 m - 20 h.
Charging time	2 h 30 min
Voltage	3.6 Volts
Additional light mode	SOS Blink Mode

Power and battery
Power configuration	Battery Powered
Battery type	Lithium Ion
Battery included	Yes

Mounting and protection
Mounting type listed	Helmet Mount
Water resistance listed	Waterproof
Specification listed	IPX7 water resistance
Material listed	other

Listed package contents
Included components	headlamp

What to know before buying

Listing details to confirm

Runtime depends on brightness: the 20-hour figure applies at 10 lumens, while 400 lumens is specified for 2 hours 30 minutes. The listing also describes USB recharging and an integrated rechargeable battery, but its generic battery details say “Battery Powered” and “Lithium Ion”. The waterproof claim is described as IPX7, with the feature text stating submersion in 1 metre of water for up to 30 minutes. Confirm which accessories come with the selected listing, as the explicit included-components field names only the headlamp while the feature text claims a headband, storage pouch, helmet attachment with adhesive tape, USB cable and manual.

What’s in the box

Included

Headlamp

Who is it for?

A good fit for

Outdoor users who want a rechargeable head torch with white, red and orange light modes.
Hikers, runners and other moving users who may benefit from a combination of long-range and close-range beams.
Buyers who can work with the shorter specified runtime at maximum brightness or use the lower settings for longer sessions.

Less suited to

Anyone needing 20 hours of operation at the maximum 400-lumen setting.
Buyers who require confirmed accessory contents before purchase, as the package details conflict.

Silva Explore 4RC Rechargeable Head Torch, 400 Lumens · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 64 ratings

5 stars66%66%
4 stars12%12%
3 stars11%11%
2 stars9%9%
1 star2%2%

Customer feedback highlights perceived brightness and quality, but reports are mixed on battery life, with some describing poor performance, and durability is also raised as a concern. These points matter for regular or extended outdoor use: the listed runtime varies from 2 hours 30 minutes at maximum brightness to 20 hours at minimum, and the specifications do not establish long-term durability. Aggregate ratings are generally positive but include a spread across rating levels, so they do not resolve those specific concerns.

Positive themes

Customers describe the torch as bright and of good quality.

Negative themes

Some customers report concerns about durability and say the torch does not last long.

Mixed feedback

Customer feedback on battery life is mixed, including reports of poor performance.

Frequently asked questions

How long does the Explore 4RC run?

The listed figures are 2 hours 30 minutes at 400 lumens, 3 hours 30 minutes at 200 lumens, and 20 hours at 10 lumens. Runtime therefore depends on the selected brightness.

What light colours does it offer?

The listing describes white, red and orange light. It presents red as useful for preserving night vision and orange for map reading.

Is the head torch rechargeable?

The product title and feature text describe USB recharging and an integrated rechargeable battery. The generic battery details are less specific, so check the selected listing if charging configuration matters.

What accessories are included?

The explicit included-components field lists the headlamp. Separate feature text claims a headband, storage pouch, helmet attachment with adhesive tape, USB cable and product manual, so confirm the package contents before buying.