I don't have the original box and the version i have is the mil issued version, so may be that's why the specs aren't listed on the site but the parts all interchange. I don't want to say it has a higher lumen than it does with out actually knowing. If u are interested I can send some night shots with it on, its dark outside right now so I should be able to get nice pics. Give me a call or message if you are interested in making a deal.