Killzone gets 5 stars, not sure on the light, maybe. Light was great but had some issued with the rubber switch falling out with what appeared to me to be a retaining gromet that was pressed in way to tight and cut off the retaining edge of the rubber switch. I couldn't find a replacement button online to match anywhere, even lumintops sight, and finally reached out to killzone to see if they could order one for me. Long story short, Lumintop wanted the light sent back so they could fix it, but killzone wasn't happy with that seeing I'd only had the light a week or so. They sent me a prepaid shipping label with instructions to send it back to them for a swap for a new, without me asking for said swap. That folks, is quality customer service. I've used killzone a few times and have always been a very satisifed customer due to their shipping speed and etc, but this was above and beyond, by far. As far as the light goes, i've got a few lumintops and all are top notch so I'm sure the light was just a fluke and will be 5 star like all the others once I get the replacement back and if your looking for a high quality light I'd certainly give it the eye.