Pretty much any of the lights driving a Cree Q5 at around 1A (Dereelight claims 1.2A) you will be getting basiacally the same amount of lumens. A Dereelight DBS, CL1H, Fenix T1, with Q5's are pretty much comparable in output. The differences are the type of beams they can produce, the design of the flashlight, the way they function, etc.
Surefire has yet to push their LED's as hard as Dereelight and Fenix, so their LED's are more in the 65-100 lumen range, where Dereelight and Fenix are more in the 180-200 lumen range. The difference is night and day when you fire up a Surefire L1 rated at 65 lumens, and a Dereelight CL1H with a Q5 and an estimated ~200 lumens.
Dereelight's % figured are the % of max output, 100% being full output (say 200 lumens), and 50% would be 100 lumens, 5% 10 lumens, etc.
The Dereelight CL1H V3 with a Q5 and textured reflector will be about the same as the Fenix T1 with a textured reflector. If you want more throw you can easily install a smooth reflector into the Dereelight CL1H. If you can open your Fenix T1 you maybe able to swap reflectors as well, if they sell them seperately. I know Fenix T1's can come with either textured or smooth,but I'm not sure how easily they can be changed.
The Dereelight DBS is designed for throw, so it is in a different class, and isn't as useful for everyday tasks, unless spotting things at 300+ feet is all you ever want to do with your flashlight.
Dereelight's lights are very modular, and if a new emitter comes out, or a new pill (light engine / circuit), it's cheap and easy to upgrade your light. Generally $25-35 for the new pill.
Update: Took some quick beam shots with my CL1H with a R2 DI pil and textured reflector, and a shot with my new Surefire L1 Cree. Both shots taken at ISO 100, f2.8, 1 sec., daylight WB:
Surefire L1 Cree on high, rated at 65 lumens by Surefire:
Dereelight CL1H DI R2 WH MAX textured reflector, 200 lumens? You be the judge:
Of course this isn't a fair contest, but this is more just to compare how Surefire's 65 lumens compare with a Dereelight CL1H. The SF L1 is using a Surefire CR123A so it performs to Surefire's specifications, the Dereelight is also running on a single cell, but a AW 18650.
Another thing to keep in mind with brands like Dereelight they are upfront with the tint bin used. With Fenix and Surefire it's usually luck of the draw as they don't tell us what tint bin they use, so your SF or Fenix LED light may have a green tint, blue, purple, or be nice and white.