They are both lights
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I appreciate the heads up, I have read about that,I don't judge most gun things by looks, for me its function over form. I prefer the TLR1 switch and I personally like the brightness of the 1000 lumen TLR1-HL. I have a few of them for different guns in the safe. As for carry with a light? Some would say its not necessary but its a personal choice you have to make. I noticed that you are putting a light on a Glock 40 cal. It will cost you but you must test the light you pick with your carry ammo and be sure it will function with the light. There are documented cases with Glock, specifically .40 cal Glocks and WMLs. I also believe there is still a disclaimer on the Streamlight sight about this as well. The light causes the frame to be more ridgid which speeds up the slide, which causes failure to feed. So again, you will need to spend a good amount of money on ammo to be sure this setup will work and not get you killed if you ever do need your gun.
Side note, I can check my holster drawer but I think I have a Vedder LightTuck for sale that is for this gun with the TLR1 light setup.