G
The Klarus G15 is a round-body LED handheld light rated at 4,200 lumens and 10,000 candela. That candela figure works out to an effective positive identification distance of 34 yards and visual impairment out to 4 yards, both calculated from the published beam data. It runs on 21700 and is rechargeable. It weighs 2.47 oz in an aluminum body 4.75 inches long. Measured against the 362 handheld lights in the index, it lands in the brightest quarter for output (4,200 lumens), in the least intense quarter for beam intensity (10,000 candela), in the lightest quarter for weight (2.47 oz), and on the cheaper side for price ($80). It is one of 71 entries in the index that qualify as a light in the same 4,000 lumen and up class. The closest listed comparison is Klarus FlatTac X1, the same brand's light in the same 4,000 lumen and up class, priced at $80.

| Series | G |
| Light Color | White |
| Emitter Type | LED |
| Lumens | 4200 |
| Candela | 10000 |
| Effective PID Distance (yds) | 34 |
| Effective Visual Impairment (yds) | 4 |
| Max Effective PID Distance (yds) | 20 to 40 |
| Max Effective Visual Impairment (yds) | Under 5 |
| Form Factor | Round |
| Battery | 21700 |
| Rechargeable | Yes |
| Material | Aluminum |
| Weight (oz) | 2.47 |
| Bezel Diameter (in) | 1.08 |
| Length (in) | 4.75 |
| Country of Manufacture | China |
| Average Price | $80 |
| Laser | No |
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