Introducció
The NITEYE by JETBeam BC20-GT is a high-performance tactical flashlight designed for daily use, camping, adventure, and outdoor hunting. It features a powerful 1080 lumen output, a long beam distance, and a durable, waterproof construction. This manual provides detailed instructions for the proper setup, operation, and maintenance of your BC20-GT flashlight.
Característiques clau
- Sortida màxima de 1080 lúmens.
- Maximum beam distance of 260 meters.
- Maximum runtime of 14 hours.
- Utilizes a CREE XP-L HI LED with an SMO reflector.
- Compatible with 1 x 18650 or 2 x CR123A batteries.
- Special Strobe mode for tactical applications.
- Constant current circuit for stable brightness output.
- New generation IC-digital circuit for LED and battery protection.
- Scratch-resistant, super-transparent mineral glass with double-sided coating.
- Waterproof to IPX-8 standard (2 meters submersible).
- Built-in USB interface for convenient charging.
Especificacions
| Paràmetre | Valor |
|---|---|
| Model | BC20-GT |
| LED | CREE XP-L HI |
| Sortida màxima | 1080 lúmens |
| Distància màxima del feix | 260 metres |
| Maximum Beam Intensity | 16800 cd |
| Temps d'execució màxim | 14 hores |
| Bateries compatibles | 1 x 18650 or 2 x CR123A |
| Longitud | 143.7 mm |
| Diàmetre del cap | 26 mm |
| Pes (sense bateria) | 134.3 g (0.29 lliures) |
| Material | Alumini |
| Classificació impermeable | IPX-8 (submergible a 2 metres) |
| Color | Negre |
Configuració
1. Instal·lació de la bateria
The BC20-GT flashlight operates with either one 18650 rechargeable Li-ion battery or two CR123A non-rechargeable lithium batteries. Ensure correct polarity during installation.
- Desenrosqueu la tapa posterior de la llanterna en sentit antihorari.
- Insert the battery(ies) with the positive (+) terminal facing towards the head of the flashlight.
- Torneu a enroscar la tapa de la cua en sentit horari fins que estigui ben ajustada.

Image: The NITEYE by JETBeam BC20-GT flashlight, illustrating the battery compartment after removing the tail cap. This shows where to insert the battery.
2. Initial Charging (for 18650 battery)
If using a rechargeable 18650 battery, it is recommended to fully charge it before first use. The BC20-GT features a built-in USB charging interface.
- Locate the USB charging port on the flashlight body. It is usually covered by a rubber flap for waterproofing.
- Open the rubber flap and connect a standard USB charging cable (not included) to the port.
- Connect the other end of the USB cable to a power source (e.g., USB wall adapter, computer USB port).
- An indicator light will typically show the charging status (e.g., red for charging, green for fully charged).
- Once charging is complete, disconnect the cable and securely close the rubber flap to maintain waterproofing.
Instruccions de funcionament
The BC20-GT flashlight is operated via a single tactical tail switch.
1. Encendre/apagar
- Per activar: Premeu completament l'interruptor posterior fins que sentiu un clic.
- Per apagar: Premeu completament l'interruptor posterior de nou fins que sentiu un clic.
2. Selecció de mode
The BC20-GT offers multiple brightness levels and a special Strobe mode. To cycle through modes:
- With the flashlight turned on, lightly tap the tail switch (without fully clicking) to cycle through the available brightness modes (e.g., Low, Medium, High).
- To activate the Strobe mode, rapidly tap the tail switch twice. Tap again to return to the previous brightness mode.
- The flashlight typically memorizes the last used brightness mode (excluding Strobe) when turned off and on again.
Manteniment
1. Neteja
- Netegeu el cos de la llanterna amb un drap net i suau.
- Per a la brutícia tossuda, utilitzeu una mica damp drap. Eviteu productes químics agressius o netejadors abrasius.
- Clean the threads of the tail cap and head regularly. Apply a thin layer of silicone grease to the O-rings to maintain waterproofing and smooth operation.
2. Cura de la bateria
- Traieu les piles si no fareu servir la llanterna durant un període prolongat per evitar fuites i danys.
- Guardeu les piles en un lloc fresc i sec.
- Always use high-quality batteries from reputable brands.
- No barregeu piles velles i noves, o diferents tipus de piles.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La llanterna no s'encén. |
|
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| La llum és tènue o parpelleja. |
|
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| La llanterna s'escalfa ràpidament. |
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Informació de seguretat
- No encengueu la llanterna directament als ulls. The high lumen output can cause temporary vision impairment or permanent eye damage.
- Mantenir fora de l'abast dels nens.
- Do not disassemble the flashlight head as this may damage the LED or internal components and void the warranty.
- Ensure proper battery polarity during installation. Incorrect installation can cause damage to the flashlight or battery.
- No llenceu les piles al foc. Poden explotar.
- Eviteu exposar la llanterna a temperatures extremes o a la llum solar directa durant períodes prolongats.
Garantia i Suport
For warranty information, technical support, or service inquiries, please refer to the official JETBeam website or contact your authorized retailer. Please retain your proof of purchase for warranty claims.







