The Streamlight TLR-1 is a pistol-mounted LED weapon light rated at 300 lumens and 12,000 candela. That candela figure works out to an effective positive identification distance of 37 yards and visual impairment out to 5 yards, both calculated from the published beam data. It runs on CR123A and is not rechargeable. It weighs 4.18 oz in an aluminum body 3.39 inches long. Measured against the 148 weapon lights in the index, it lands among the dimmest 10 percent for output (300 lumens), on the less intense side for beam intensity (12,000 candela), about in the middle for weight (4.18 oz), and on the cheaper side for price ($150). It is one of 20 entries in the index that qualify as a light in the same under 500 lumen class. The closest listed comparison is Streamlight TLR-2, the same brand's light in the same under 500 lumen class, priced at $360.

| Series | TLR-1 |
| Light Color | White |
| Emitter Type | LED |
| Lumens | 300 |
| Candela | 12000 |
| Laser | No |
| Effective PID Distance (yds) | 37 |
| Max Effective PID Distance (yds) | 20 to 40 |
| Effective Visual Impairment (yds) | 5 |
| Max Effective Visual Impairment (yds) | 5 to 10 |
| Form Factor | Pistol |
| Battery | CR123A |
| Rechargeable | No |
| Material | Aluminum |
| Weight (oz) | 4.18 |
| Bezel Diameter (in) | 1.18 |
| Length (in) | 3.39 |
| Country of Manufacture | China |
| Average Price | $150 |
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