Assertion: holographic sight | /r/CapableOf | run on single set of batteries
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text: The laser diode in a holographic sight uses more power and has more complex driving electronics than a standard LED of an equivalent brightness, reducing the amount of time a holographic sight can run on a single set of batteries (around 600 hours for typical sights).
text: Lasers use more power and more complex driving electronics than an LED of an equivalent brightness,[citation needed] reducing the amount of time a holographic sight can run on a single set of batteries.