1. Rhagymadrodd
Thank you for choosing the Alonefire SV52 25W UV LED 365nm Rechargeable Flashlight. This professional-grade ultraviolet flashlight is designed for a wide range of applications, offering a powerful 365nm UV light source with a high-quality black filter lens for pure and effective UV output. Please read this manual thoroughly before use to ensure safe and optimal performance.

The Alonefire SV52 UV Flashlight, showing its powerful UV beam, included USB-C charging cable, and protective glasses.
2. Gwybodaeth Diogelwch
RHYBUDD: Ultraviolet (UV) light can be harmful to eyes and skin. Always follow these safety guidelines:
- Amddiffyn Llygaid: Always wear the provided UV protective glasses when operating the flashlight. Never look directly into the UV light source.
- Amlygiad Croen: Avoid prolonged direct exposure of skin to UV light.
- Plant: Cadwch y flashlight allan o gyrraedd plant.
- Gwres: The flashlight may generate heat during extended use. Handle with care.
- Diogelwch Batri: Use only the specified rechargeable battery. Do not attempt to disassemble or short-circuit the battery.
- Gwaredu: Gwaredu batris a chydrannau electronig yn unol â rheoliadau lleol.
3. Cynnwys Pecyn
Gwiriwch fod yr holl eitemau yn bresennol yn eich pecyn:
- Alonefire SV52 UV LED Flashlight
- Rechargeable Lithium-ion Battery (pre-installed or separate)
- Cebl Codi Tâl USB Math-C
- UV Protective Glasses

The complete package contents of the Alonefire SV52 UV Flashlight.
4. Cynnyrch Drosview
The Alonefire SV52 features a robust design and specialized components for optimal UV performance.
Nodweddion Allweddol:
- High-Quality 365nm UV LED: Utilizes a professional 365nm UV LED as the light source, providing 25W power consumption and 4800mW light output for effective detection.
- Black UV Filter Lens: Equipped with a hardened optical black filter lens that filters out ambient visible light, ensuring a purer and more powerful ultraviolet beam.
- Durable Aluminum Alloy Shell: Constructed from high-quality aluminum alloy, enhancing heat dissipation and ensuring reliability and durability.
- USB Math-C y gellir ei hailwefru: Supports convenient USB Type-C charging.
Adnabod Cydran:

Manwl view of the flashlight components.

Illustration of the black UV filter lens function.

Comparison of 365nm vs. 395nm UV light effectiveness.
5. Gosod
5.1 Gosod Batri
The Alonefire SV52 comes with a rechargeable Lithium-ion battery. Ensure the battery is correctly inserted with the positive (+) terminal facing towards the lamp pen.
5.2 Codi Tâl Cychwynnol
Before first use, fully charge the flashlight. Connect the provided USB Type-C cable to the flashlight's charging port and to a compatible USB power source (e.g., computer, power adapter, power bank, car charger).
- Bydd y golau dangosydd gwefru yn coch yn ystod codi tâl.
- Bydd y golau dangosydd gwefru yn troi gwyrdd pan gaiff ei wefru'n llawn.

Charging the Alonefire SV52 via USB Type-C.
6. Gweithrediad
6.1 Pweru Ymlaen/Diffodd
To turn the flashlight ON, press and hold the power switch for approximately 3 seconds. To turn it OFF, press and hold the power switch again for 3 seconds.

Proper grip and power switch location.
6.2 Canllawiau Defnydd
Always wear the provided UV protective glasses before activating the flashlight. Direct the UV beam towards the area you wish to inspect. The 365nm wavelength, combined with the black filter lens, ensures that fluorescent materials glow brightly while minimizing visible light interference.
7. Ceisiadau
The Alonefire SV52 UV flashlight is suitable for various professional and household applications:
- Canfod Wrin a Staeniau Anifeiliaid Anwes: Identify hidden pet stains on carpets, rugs, and upholstery.
- Mineral and Gemstone Inspection: Observe fluorescence in various minerals, amber, and gemstones.
- Dilysu Arian Cyfred a Dogfennau: Check security features on banknotes, passports, and other official documents.
- Canfod Scorpion: Scorpions fluoresce brightly under 365nm UV light, making them easy to spot in dark environments.
- Cywasgu Resin: Accelerate the curing process of UV-sensitive resins.
- Fishing Lure Charging: Charge fluorescent fishing lures for enhanced visibility.
- Hygiene Inspection: Detect invisible contaminants in bathrooms, kitchens, and other areas.



8. cynnal
8.1 Glanhau
Sychwch gorff y fflachlamp gyda lliain meddal, damp lliain. Peidiwch â defnyddio glanhawyr sgraffiniol na thoddyddion. Cadwch y lens yn lân i gael yr allbwn golau gorau posibl.
8.2 Storio
Store the flashlight in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, remove the battery or ensure it is charged periodically to maintain battery health.
9. Datrys Problemau
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Nid yw Flashlight yn troi ymlaen. | Battery is depleted. Battery is incorrectly installed. Power switch malfunction. | Charge the battery. Check battery polarity. Contact customer support if issue persists. |
| Light output is weak. | Battery is low. Lens is dirty. | Ail-wefrwch y batri. Glanhewch y lens gyda lliain meddal. |
| Mae'r fflachlamp yn mynd yn boeth wrth ei ddefnyddio. | Normal operation for high-power UV LED. Prolonged use. | This is normal. Discontinue use if it becomes excessively hot. Ensure proper ventilation. |
| Nid yw'r dangosydd gwefru yn goleuo. | Charging cable is not properly connected. USB power source is faulty. | Ensure cable is securely connected. Try a different USB power source. |
10. manylebau
| Nodwedd | Manylyn |
|---|---|
| Brand | ALONEFIRE |
| Rhif Model | SV52 |
| Math o Ffynhonnell Golau | 365nm UV LED |
| Defnydd Pŵer | 25W |
| UV Light Output | 4800mW |
| Deunydd | Aloi Alwminiwm |
| Lliw | Du |
| Ffynhonnell Pwer | Wedi'i Bweru â Batri (Aildrydanadwy) |
| Math Batri | 1 Lithium-ion (Included) |
| Porthladd Codi Tâl | USB Math-C |
| Pwysau Eitem | 380 gram |
| Dimensiynau Pecyn | 18.4 x 8.8 x 5.7 cm |
| Nodweddion Arbennig | High Power, Rechargeable, Black Filter Lens |
11. Gwarant a Chefnogaeth
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the retailer/manufacturer directly. Keep your purchase receipt as proof of purchase.


