Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: do i have to hold down the pressure switch for the light to stay on or dose it click on and off
Document: very bright. i have many headlights and use a 700 lumen head light for biking and this did just as good as that did, if not better. the pressure switch is only a momentary switch, meaning that you have to hold the button down or else it turns off. i dont use the switch. i just use the constant on button. buy extra batteries at the same time because the batteries that it came with died within about 8 hours of use
This thing is uber bright. Compared to other lights tested in the field at night, this light is brighter and the light is white instead of yellow. I didn't care for the pressure switch because you have to continue to press it to make the light stay on and the coil in the cord is hard to hide on the rifle. They should have supplied just a straight cord with a true on/off pressure switch. The light is good quality and the mount is top notch.
Light is very bright and love the pressure switch. Would tell others to but. Light came with everything you need.
Light is very bright!! cord is a bit to long for the pressure switch. but other than that I can light up anything in view on my block. truly awesome! !
Very happy with this light. The light and its mount are very well made. Very bright light. My only complaint is that the wire between the light and the pressure switch is a little too long.
Bright Frickin Light !! Mounted easy and works as advertised. Have not had the opportunity to install the pressure switch to the foregrip yet. Very satisfied so far...
This is a very bright and long - lasting light. The pressure switch works well and I have had no problems with this light at all. I was able to mount this light quickly and easily on my M4.
Got the light and installed it on my AR-15 and it was very bright. I did not particulary like the pressure switch but I did not plan on using it. I have no complanints about this light and for the price you can not beat it.
The pressure switch cable is a little long but it works well enough. The light is very, very bright! The mount is very secure and mounts well. It's very impressive considering the remarkable price. Wow, worth every penny and then some!
Very powerful and compact. Great for your shotgun or Ar-15 ( I have one on both). Also a very good in hand light. My only complaint is if using it in hand for long periods of time it tends to get very very warm and slightly uncomfortable to hold. I recommend this mainly as a gun weapon. Just wish it was rechargeable.
Answer: yes