| Brand | RUSTU |
| Model | R300S |
| Color | Black |
| Quantity | 1 |
| Material | T6063 Aluminum |
| Emitter Brand | Cree |
| LED Type | XM-L |
| Emitter BIN | T6 |
| Color BIN | Cool White |
| Number of Emitters | 3 |
| Brightness | 2200 > 1500 > 2000 lm |
| Working Voltage | 3.6~4.2 V |
| Circuitry | 6500~7700 mA |
| Number of Modes | 3 |
| Mode Arrangement | Hi > Lo > Fast strobe (Long press 2 seconds) |
| Switch Type | Forward clicky |
| Switch Location | Head |
| Mode Memory | No |
| Runtime | 4 hours (Depends battery capacity) |
| Beam Range | 300 meter |
| Lens | Tempered optical glass |
| Reflector | Aluminum Smooth / SMO |
| Battery Configuration | 4 x 18650 (not included) |
| Strap Included | Yes |
| Clip Included | No |
| Other Feature | Hard anodized: HA-III |
| Certification | CE |
| Packing List | 1 x Flashlight |
| ? | 1 x Strap (35cm) |
| ? | 1 x O-Ring |