Streamlight ProTac 2L-X USB size & dimensions

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Streamlight ProTac 2L-X USB shown at true scale next to an 18650 cell. Add another light to compare.

Streamlight ProTac 2L-X USB · 130.55 mm18650 cell · 65 mm18650

Specs

Streamlight ProTac 2L-X USB
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Length130.6 mm (5.14 in)
Head / width26.9 mm (1.06 in)
Body23.9 mm (0.94 in)
Weight125 g with battery
Battery18650 / 2x CR123A
Max output500 lm
Throw—
TypeEDC
Price$83.05 at batteryjunction.com, as of Nov 4, 2026
Sourcebatteryjunction.com sourced

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Size in everyday terms

The Streamlight ProTac 2L-X USB is 130.6 mm (5.14 in) long and 26.9 mm (1.06 in) across at its widest point. That is about 1.5 times the length of a credit card (85.6 mm), or about 2.6 AA batteries end to end (50.5 mm each). Its widest point is 2.7 mm wider than a US quarter (24.26 mm). Next to a phone the size of an iPhone 15 (147.6 mm tall) it is 88% as long.

How it ranks

Among the 136 EDC lights in our catalog, the Streamlight ProTac 2L-X USB is the 94th shortest, 104th brightest of 118 with a published output.

Battery, output and weight

The Streamlight ProTac 2L-X USB runs on removable 18650 / 2x CR123A batteries. The manufacturer rates its maximum output at 500 lm. Listed weight is 125 g (with battery). When we checked on Nov 4, 2026, it was $83.05 at batteryjunction.com.

Streamlight ProTac 2L-X USB vs…

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ProTac 2L-X USB FAQ

How big is the Streamlight ProTac 2L-X USB?

The Streamlight ProTac 2L-X USB is 130.6 mm (5.14 in) long and 26.9 mm (1.06 in) across at its widest point. That is about 1.5 times the length of a credit card (85.6 mm), or about 2.6 AA batteries end to end (50.5 mm each). Its widest point is 2.7 mm wider than a US quarter (24.26 mm). Next to a phone the size of an iPhone 15 (147.6 mm tall) it is 88% as long.

What battery does the Streamlight ProTac 2L-X USB use?

The Streamlight ProTac 2L-X USB runs on removable 18650 / 2x CR123A batteries.

How bright is the Streamlight ProTac 2L-X USB?

The manufacturer rates the Streamlight ProTac 2L-X USB at 500 lm maximum output.

More Streamlight lights

PolyTac X USBWedge XTProTac HL-XStylus ProMacroStream USBProTac 1L-1AAWedge SLStylus Pro USBMicroStream USBTLR-1 HL-XAll 15 Streamlight lights →

See also: Best EDC flashlights

Sources

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