Don't know what the lumens are, but these lights are certainly brighter than a standard filament type flashlight, and much easier on the batteries. I cannot compare it to halogen, but just know they are pretty bright. I love them. I bought 3, and took my 6 volt filament flashlights to the Goodwill.
It's brighter and shines further. Also the bulbs draw less power and therefore the battery lasts longer and the leds themselves last longer than the reg. bulbs.
This LED lantern is 13% brighter than Rayovac's krypton 6V lantern and the battery life is 10X longer.