Glocusent A39 26-LED Rechargeable Book Light

The Glocusent A39 book light is a rechargeable clip-on LED with adjustable brightness and colour temperature. Its 26 LEDs, flexible neck and claimed runtime range suit reading at night, while the listing gives different control descriptions that are worth checking before purchase.

At a glance

The listing specifies 26 LEDs and a widened 10.8 cm lamp head, with claimed brightness from 3LM to 100LM.
Five colour temperatures are listed from 1800K to 6000K, alongside five brightness levels and stepless adjustment claims.
A flexible neck is described as rotating 360° to direct the light.
The manufacturer claims 12 hours at highest brightness and up to 90 hours at lowest brightness.

Price

$18.99Save 5%

Reference price: ~~$19.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Rechargeable, cordless design combines clip-on mounting with a flexible neck for positioning light on a book or nearby surface.
Adjustable brightness and colour temperature let readers choose a softer or brighter setting.
At 78 Grams, the listed weight is suited to carrying with reading material.

Cons

The listing says the light is not water resistant, so it is not suited to wet conditions.

Technical specifications

19 specifications

Identity
Brand	Glocusent
Model	A39

Lighting
Light source	LED
Number of light sources	26
Bulb shape size	54SMD
Colour temperature	1800K–6000K
Brightness levels	3LM–100LM

Controls and power
Control methods listed	Push Button
Power configuration	Battery Powered
Battery capacity	1200mAh
Voltage	5 Volts (DC)
Battery runtime claim	up to 90 hours at the lowest brightness and up to 12 hours at the highest brightness

Dimensions and installation
Mounting types listed	Clip On
Form factor	Straight
Dimensions listed	10.8D x 30W x 3.7H centimetres
Weight listed	78 Grams

Materials and protection
Base material	Acrylonitrile Butadiene Styrene
Finish	Matte
Water resistance listed	Not Water Resistant

What to know before buying

Listing details to confirm

The listing is inconsistent about controls: its details specify push-button control, while another field says touch. Its contents list names a USB port, but the feature text instead says a charging cable is included and that no adapter is included. Confirm the selected listing's control type and included charging items. Runtime is claimed by brightness mode, not as one unconditional figure.

What’s in the box

BatteryIncluded
USB portIncluded
User manualIncluded
BookmarkIncluded
Clip-on book lightIncluded
Charging cableCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Readers wanting a rechargeable clip-on light with adjustable brightness and colour temperature.
People who want to position a book light using a flexible neck and carry it between reading spots.

Less suited to

Anyone needing a water-resistant light or a guaranteed single runtime irrespective of brightness setting.

Glocusent A39 26-LED Rechargeable Book Light · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 11,510 ratings

5 stars86%86%
4 stars10%10%
3 stars2%2%
2 stars1%1%
1 star1%1%

Customer feedback highlights night-time reading, adjustable light from amber to white, multiple brightness options and long-lasting rechargeable use. Those reports align with the listing's adjustable lighting and mode-specific runtime claims, although actual runtime depends on brightness. The aggregate ratings are strongly positive overall, but ratings alone do not establish a particular product strength or explain less-positive experiences.

Positive themes

Customer feedback highlights useful brightness and colour options, including warmer yellow lighting.
The feedback describes the rechargeable battery as lasting a long time and the light as practical for night reading.

Frequently asked questions

How long does the battery last?

The listing claims up to 90 hours at the lowest brightness and up to 12 hours at the highest brightness. These are different operating modes, not a single general runtime.

Can the light's colour and brightness be adjusted?

Yes. The listing claims five colour temperatures from 1800K to 6000K, five brightness levels from 3LM to 100LM, and stepless adjustment.

What charging accessories are included?

The details list a USB port, while the feature text says a charging cable is included and no adapter is included. Confirm the selected listing's package contents before buying.