Nightstick USB-557
| Series | USB-557 |
| Light Color | White+UV |
| Emitter Type | LED |
| Lumens | 1700 |
| Candela | 1390 |
| Effective PID Distance (yds) | 12 |
| Max Effective PID Distance (yds) | Under 20 |
| Effective Visual Impairment (yds) | 1 |
| Max Effective Visual Impairment (yds) | Under 5 |
| Battery | Rechargeable Li-Ion |
| Rechargeable | Yes |
| Weight (oz) | 4.2 |
| Length (in) | 4.72 |
| Average Price | $90 |
| Form Factor | Round |
| Laser | Green |
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