GL
Klarus GL4
The Klarus GL4 is a rifle-mounted LED weapon light rated at 3,300 lumens and 34,225 candela. That candela figure works out to an effective positive identification distance of 63 yards and visual impairment out to 9 yards, both calculated from the published beam data. It runs on Lithium Ion and is rechargeable. It weighs 5.29 oz in a body 5.5 inches long. Measured against the 148 weapon lights in the index, it lands among the brightest 10 percent for output (3,300 lumens), on the more intense side for beam intensity (34,225 candela), on the heavier side for weight (5.29 oz), and in the least expensive quarter for price ($110). It is one of 4 entries in the index that qualify as a light in the same 2,000 to 3,999 lumen class. The closest listed comparison is Klarus GL3, the same brand's light in the same 2,000 to 3,999 lumen class.
| Series | GL |
| Light Color | White |
| Emitter Type | LED |
| Lumens | 3300 |
| Candela | 34225 |
| Laser | No |
| Effective PID Distance (yds) | 63 |
| Max Effective PID Distance (yds) | 60 to 80 |
| Effective Visual Impairment (yds) | 9 |
| Max Effective Visual Impairment (yds) | 5 to 10 |
| Form Factor | Rifle |
| Battery | Lithium Ion |
| Rechargeable | Yes |
| Weight (oz) | 5.29 |
| Length (in) | 5.5 |
| Country of Manufacture | China |
| Average Price | $110 |
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