Introducció
Thank you for choosing the Glocusent A28 Rechargeable Book Light. This manual provides essential information for the safe and efficient use of your device. Please read it thoroughly before operation and retain it for future reference.

Image: Glocusent A28 Rechargeable Book Light, illustrating its compact design and how it clips onto a book for reading.
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The Glocusent A28 is a versatile book light designed for comfortable reading. It features multiple color temperatures, adjustable brightness levels, a sleep aid timer, and a travel lock for convenience.
Característiques principals:
- 3 temperatures de color: 2700K (Warm), 4000K (Natural), 6000K (Cool) for various reading environments.
- 5 nivells de brillantor: Adjustable from 5 to 25 lumens.
- Sleep Aid Timer: 30 or 45-minute auto-shutoff with gradual dimming.
- Bloqueig de viatge: Evita l'activació accidental durant el transport.
- USB-C recarregable: Càrrega còmoda i ràpida.
- Disseny flexible: Swivel head and wide-angle beam for optimal illumination.

Imatge: Més deview of the Glocusent A28 Book Light's controls, including power indicators, on/off button, brightness adjustment, color temperature adjustment, timing setting, sleep aid, and USB-C charging port.
Configuració
1. Desbloqueig del dispositiu
The Glocusent A28 Book Light is shipped in a locked state to prevent accidental power-on and battery drain during transit. Before first use or charging, you must unlock the device.
- Locate the small slide switch on the side of the device.
- Slide the switch from the "Lock" position to the "Unlock" position.

Image: The Glocusent A28 Book Light highlighting the travel lock switch on its side.
2. Carregant la bateria
Ensure the device is unlocked before charging. The book light features a built-in rechargeable Lithium Polymer battery.
- Connect the provided USB-C charging cable to the USB-C port on the book light.
- Connect the other end of the cable to a compatible USB power source (e.g., computer USB port, wall adapter, power bank).
- The power indicators on the device will illuminate to show charging status. A full charge typically takes a few hours.
- Desconnecta el cable de càrrega un cop estigui completament carregat.

Image: The Glocusent A28 Book Light being charged via its USB-C port, with an illustration of its 500mAh battery and up to 90 hours of battery life.
Instruccions de funcionament
1. Encendre/apagar
- Premeu el botó Botó d'engegada per encendre o apagar la llum.
2. Ajust de brillantor
The book light offers 5 brightness levels.
- Amb la llum encesa, premeu el botó Botó d'ajust de brillantor repeatedly to cycle through the 5 brightness levels.
3. Canvi de la temperatura de color
Choose from 3 color temperatures: 2700K (Warm), 4000K (Natural), and 6000K (Cool).
- Amb la llum encesa, premeu el botó Botó d'ajust de temperatura de color repeatedly to cycle through the available color modes.

Image: Visual representation of the three color temperatures (2700K, 4000K, 6000K) and five brightness levels, demonstrating their effect on reading comfort.
4. Sleep Aid & Timer Function
The sleep aid feature allows you to set a timer for the light to gradually dim and turn off, promoting a relaxed transition to sleep.
- Set Reading Time: Premeu breument Botó del temporitzador to select a 30-minute or 45-minute timer. Corresponding indicator lights will show the selected duration.
- Activate Gradual Dimming: Premeu llargament el botó Botó del temporitzador to activate the gradual dimming sleep aid mode. The light will slowly fade out over the set duration.

Image: A user reading in bed with the Glocusent A28 Book Light, illustrating the sleep aid feature with 30/45-minute timers and gradual dimming for a sunset simulation effect.
5. Adjusting the Light Head
The flexible light head allows for precise positioning of the light beam.
- The head can rotate 150 degrees.
- It can also tilt 65 degrees downward.
- The light head can swivel 90 degrees clockwise and 90 degrees anticlockwise.
- Adjust the head to illuminate both pages evenly without disturbing others.

Image: Diagram illustrating the flexible adjustments of the Glocusent A28 Book Light head, including 150° rotary, 65° downward tilt, and 90° clockwise/anticlockwise swivel.
6. Attaching to Books
The book light features a polished clip designed to securely attach to various book types without causing damage.
- Gently slide the clip onto the cover or pages of your book.
- Ensure the clip is firmly attached but not overly tight to avoid creasing pàgines.
Manteniment
Neteja
- Netegeu el dispositiu amb un drap suau i sec.
- No utilitzeu netejadors abrasius ni dissolvents.
Cura de la bateria
- Per allargar la durada de la bateria, eviteu descarregar-la completament amb freqüència.
- Carregueu el dispositiu regularment, fins i tot si no l'utilitzeu amb freqüència.
- Guardeu el dispositiu en un lloc fresc i sec quan no el feu servir durant períodes prolongats.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La llum no s’encén. | El dispositiu està bloquejat. | Slide the travel lock switch to the "Unlock" position. |
| La llum no s’encén. | La bateria està esgotada. | Carregueu el dispositiu amb el cable USB-C proporcionat. |
| La llum no s'està carregant. | Problema amb el cable de càrrega o la font d'alimentació. | Ensure the USB-C cable is securely connected and try a different USB power source. |
| Light turns on accidentally in bag. | Travel lock is not engaged. | Slide the travel lock switch to the "Lock" position before storing. |
Especificacions
| Característica | Detall |
|---|---|
| Número de model | A28 (GLCSNTN1202) |
| Dimensions | 4.2" de profunditat x 8.5" d'amplada x 3.1" d'alçada (11.43 x 3.3 x 1.52 cm) |
| Pes | 1.66 unces (47 grams) |
| Material | Acrilonitril butadiè estirè (ABS), plàstic |
| Font de llum | 14 comptes de LED |
| Nivells de brillantor | 5 (5 to 25 lumens) |
| Temperatures de color | 3 (2700K Warm, 4000K Natural, 6000K Cool) |
| Tipus de bateria | Polímer de liti recarregable (500 mAh) |
| Port de càrrega | USB-C |
| Entrada Voltage | 5 volts (CC) |
| Funció de temporitzador | 30-minute, 45-minute with gradual dimming sleep aid |
| Durada màxima de la bateria | Up to 90 hours (lowest brightness setting) |
| Certificacions | FCC, CE, RoHS, PSE & C-TICK certified |
Garantia i Suport
Informació de la garantia
The Glocusent A28 Book Light comes with a 24 mesos de garantia des de la data de compra. Aquesta garantia cobreix els defectes de fabricació i els problemes derivats de l'ús normal. Si us plau, conserveu el comprovant de compra per a reclamacions de garantia.
Atenció al client
For any questions, concerns, or technical assistance, please contact our Customer Experience Team. They are available 24/7 to provide support.
- Mètode de contacte: Refer to the contact information provided on the Glocusent official weblloc web o l'embalatge del producte.
- Servei de devolució: A 30-day return service is available.