1. Introducció
The Streamlight UltraStinger 77751 is a professional-grade rechargeable tactical flashlight designed for demanding conditions. It delivers 1100 lumens and 65000 candelas, providing a long-range, precision-focused beam. This manual provides essential information for the safe and effective use, maintenance, and troubleshooting of your UltraStinger flashlight.

Figure 1: Streamlight UltraStinger 77751 Rechargeable Tactical Flashlight. This image shows the flashlight from an angled perspective, highlighting its robust black aluminum body and large reflector head.
2. Informació de seguretat
Always read and understand all instructions and warnings before using this product. Failure to do so may result in electric shock, fire, or serious injury.
- Seguretat ocular: Do not stare directly into the light beam. The intense light can cause temporary vision impairment or eye damage.
- Seguretat de la bateria: Use only approved Streamlight batteries and charging equipment. Improper battery use can lead to fire or explosion.
- Calor: The flashlight head may become hot during prolonged use on high settings. Handle with care.
- Avís químic: Aquest producte conté productes químics coneguts per l'estat de Califòrnia per causar càncer i defectes de naixement o altres danys reproductius. Rentar-se les mans després de la manipulació.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al vostre paquet:
- Streamlight UltraStinger Flashlight
- Rechargeable Battery (installed)
- PiggyBack Charger
- 120-Volt AC Charger
- Guia de l'usuari (aquest document)
4. Configuració
4.1 Càrrega inicial
Before first use, fully charge the UltraStinger flashlight. The PiggyBack charger allows for simultaneous charging of the flashlight and a spare battery (if purchased separately).
- Connect the 120-Volt AC charger to a power outlet and then to the PiggyBack charger.
- Insert the UltraStinger flashlight into the charging slot of the PiggyBack charger. Ensure it clicks securely into place.
- The charging indicator light on the charger will illuminate (typically red) to indicate charging is in progress.
- A full charge takes approximately 10 hours. The indicator light will change color (typically green) when charging is complete.

Figure 2: Streamlight UltraStinger with PiggyBack Charger and 120V AC adapter. This image displays the flashlight docked in its charging cradle, connected to the AC power adapter.
5. Instruccions de funcionament
5.1 Power Button and Modes
The UltraStinger features a multi-function push-button switch for power and mode selection.
- Momentània activada: Lightly press and hold the power button for momentary illumination. Release to turn off.
- Constantment encès/apagat: Fully press and release the power button to turn the flashlight on or off.
- Selecció del mode: From the "on" position, rapidly press and release the power button to cycle through the brightness modes: High, Medium, Low, and Strobe. The flashlight will remember the last selected mode when turned off and on again.
5.2 Light Output and Runtime
The UltraStinger offers three brightness levels and a strobe function:
| Mode | Llums | Candela | Distància del feix | Temps d'execució |
|---|---|---|---|---|
| Alt | 1100 | 65,000 | 510 m | 1h 30min |
| Mitjana | 350 | 21,000 | 290 m | 4h 30min |
| Baixa | 90 | 5,000 | 141 m | 16h |
| Strobe | 1100 | 65,000 | 510 m | 3h 15min |

Figure 3: FL1 Standard performance table for the UltraStinger, detailing lumens, candela, beam distance, and runtime for each mode.

Figure 4: Illustration of different beam patterns (Tradition, HL, HPL). The UltraStinger features a focused beam for long-range illumination.
6. Manteniment
6.1 Cura de la bateria
- To maintain optimal battery life, recharge the flashlight regularly, ideally after each use or when the beam noticeably dims.
- Guardeu la llanterna en un lloc fresc i sec quan no la feu servir.
- Si la llanterna no s'utilitzarà durant un període prolongat, traieu la bateria per evitar possibles fuites.
- Replacement batteries are available from authorized Streamlight dealers.
6.2 Neteja
- Clean the lens with a soft, lint-free cloth. Avoid abrasive materials that could scratch the lens.
- Wipe the body of the flashlight with a damp cloth as needed. Do not immerse the flashlight in water.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La llanterna no s'encén. | Bateria baixa o esgotada. | Charge the battery fully using the PiggyBack charger. |
| Connexió de bateria solta. | Ensure the battery is properly seated and the tail cap is tightened. | |
| Llum tènue o parpellejant. | Baixa càrrega de la bateria. | Recarregueu la bateria. |
| Dirty electrical contacts. | Clean battery and flashlight contacts with a clean, dry cloth. | |
| La llanterna no es carrega. | El carregador no està ben connectat. | Verify the AC adapter is plugged into a live outlet and securely connected to the PiggyBack charger. Ensure the flashlight is correctly seated in the charger. |
| Bateria o carregador defectuosos. | Contact Streamlight customer support for assistance. |
8. Especificacions
- Model: Streamlight UltraStinger 77751
- Font de llum: LED
- Lúmens màxims: 1100
- Max Candela: 65,000
- Distància del feix: Fins a 510 metres
- Font d'alimentació: Bateria NiMH recarregable (inclosa)
- Material: Alumini mecanitzat
- Color: Negre
- Dimensions: 11.82 cm (profunditat) x 2.37 cm (amplada) x 2.37 cm (alçada)
- Pes de l'article: 1.24 lliures
- Resistència a l'aigua: IPX4 (resistent a l'aigua)
- Resistència a l'impacte: 3-Meter Tested
- Components inclosos: Flashlight, Battery, PiggyBack Charger, 120-Volt AC Charger, User Guide
9. Garantia i Suport
9.1 Informació de la garantia
The Streamlight UltraStinger 77751 is covered by a Garantia limitada de per vida. This warranty covers defects in materials and workmanship for the lifetime of the product, excluding batteries, bulbs, abuse, and normal wear and tear. For full warranty details, please refer to the official Streamlight weblloc o contacteu amb el servei d'atenció al client.
9.2 Atenció al client
For technical assistance, warranty claims, or to purchase replacement parts, please visit the official Streamlight weblloc web o poseu-vos en contacte amb el seu departament d'atenció al client. Podeu trobar més informació i dades de contacte a Streamlight Store.





