Nightstick TAC-310XL
The Nightstick TAC-310XL is a round-body LED handheld light rated at 500 lumens and 5,597 candela. That candela figure works out to an effective positive identification distance of 25 yards and visual impairment out to 3 yards, both calculated from the published beam data. It runs on CR123A and is not rechargeable. It weighs 4.4 oz in a polymer body 5.5 inches long. Measured against the 362 handheld lights in the index, it lands among the dimmest 10 percent for output (500 lumens), among the least intense 10 percent for beam intensity (5,597 candela), on the lighter side for weight (4.4 oz), and among the least expensive 10 percent for price ($55). It is one of 61 entries in the index that qualify as a light in the same 500 to 999 lumen class. The closest listed comparison is Nightstick USB-568XL, the same brand's light in the same 500 to 999 lumen class, priced at $100.
| Series | TAC-310XL |
| Light Color | White |
| Emitter Type | LED |
| Lumens | 500 |
| Candela | 5597 |
| Effective PID Distance (yds) | 25 |
| Max Effective PID Distance (yds) | 20 to 40 |
| Effective Visual Impairment (yds) | 3 |
| Max Effective Visual Impairment (yds) | Under 5 |
| Battery | CR123A |
| Rechargeable | No |
| Material | Polymer |
| Weight (oz) | 4.4 |
| Bezel Diameter (in) | 1.25 |
| Length (in) | 5.5 |
| Average Price | $55 |
| Form Factor | Round |
| Laser | No |
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