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Klarus A1 PRO
The Klarus A1 PRO is a round-body LED handheld light rated at 1,300 lumens and 13,225 candela. That candela figure works out to an effective positive identification distance of 40 yards and visual impairment out to 5 yards, both calculated from the published beam data. It runs on 18650 and is rechargeable. It weighs 4.94 oz in an aluminum body 6.32 inches long. Measured against the 362 handheld lights in the index, it lands about in the middle for output (1,300 lumens), on the less intense side for beam intensity (13,225 candela), about in the middle for weight (4.94 oz), and among the least expensive 10 percent for price ($35). It is one of 127 entries in the index that qualify as a light in the same 1,000 to 1,999 lumen class. The closest listed comparison is Klarus EC20, the same brand's light in the same 1,000 to 1,999 lumen class, priced at $40.
| Series | A |
| Light Color | White |
| Emitter Type | LED |
| Lumens | 1300 |
| Candela | 13225 |
| Effective PID Distance (yds) | 40 |
| Effective Visual Impairment (yds) | 5 |
| Max Effective PID Distance (yds) | 40 to 60 |
| Max Effective Visual Impairment (yds) | 5 to 10 |
| Form Factor | Round |
| Battery | 18650 |
| Rechargeable | Yes |
| Material | Aluminum |
| Weight (oz) | 4.94 |
| Bezel Diameter (in) | 1.38 |
| Length (in) | 6.32 |
| Country of Manufacture | China |
| Average Price | $35 |
| Laser | No |
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