X400
SureFire X400T Turbo
The SureFire X400T Turbo is a pistol-mounted LED weapon light rated at 650 lumens and 66,000 candela. That candela figure works out to an effective positive identification distance of 88 yards and visual impairment out to 12 yards, both calculated from the published beam data. It carries an integrated red aiming laser. It runs on CR123A and is not rechargeable. It weighs 4.9 oz in an aluminum body 3.6 inches long. Measured against the 148 weapon lights in the index, it lands on the dimmer side for output (650 lumens), in the most intense quarter for beam intensity (66,000 candela), on the heavier side for weight (4.9 oz), and among the most expensive 10 percent for price ($699). It is one of 54 entries in the index that qualify as a light in the same 500 to 999 lumen class. The closest listed comparison is SureFire M640DFT Pro Turbo Scout Light Pro, the same brand's light in the same 500 to 999 lumen class, priced at $419.
| Series | X400 |
| Light Color | White |
| Emitter Type | LED |
| Lumens | 650 |
| Candela | 66000 |
| Laser | Red |
| Effective PID Distance (yds) | 88 |
| Max Effective PID Distance (yds) | 80+ |
| Effective Visual Impairment (yds) | 12 |
| Max Effective Visual Impairment (yds) | 10 to 15 |
| Form Factor | Pistol |
| Battery | CR123A |
| Rechargeable | No |
| Material | Aluminum |
| Weight (oz) | 4.9 |
| Bezel Diameter (in) | 1.125 |
| Length (in) | 3.6 |
| Country of Manufacture | USA |
| Average Price | $699 |
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