Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: memory
Document: Most portable affordable ultra bright light. I really like that it keeps a memory of the mode you are in. I don't have to cycle through to bring the light to minimum brightness. I prefer to start using any adjustable light on the lowest mode to conserve battery, then increase if the extra light is needed. I starts in low where i left it.
This slick little flashlight is just barely acceptable. It has a wrist strap, which can be removed (good) but no belt clip (less than good). My only real complaint is that it doesn't have mode memory; it will always start up in mode 1. Most other flashlights without mode memory are MUCH worse, in that they will start up in the the mode after the last mode used. This flashlight gets 3 stars instead of 2 because is DOESN'T do this annoying thing. Overall, it may be worth the money... it's a close call.
Just recieved this little light in the mail. The batteries came yesterday a day early. I have to say I am very satisfied with it's performance for only $20. It has 5 modes and a setting memory. Full clicks cycle through the modes, full, mid, low, strobe and SOS. to use the memory you half push the button for a few seconds(the light will turn off) on the setting you want, then when you turn off the light with a full click and turn it back on with a full click it comes back to the setting you selected.
While this flashlight is not 1000 lumens, it is very bright. It throws a wide bright beam and has decent distance. The switch works smoothly and the memory function comes in very handy. I purchased mine thru Amazon for $15.98 including shipping and it is definitely worth it. I am using 2 CR123A batteries, I don't know if the light output would be any different using 1 18650 battery which is the recommended one to use. I cannot find any reason not to give it 5 stars.
I bought 2 of these because for the price you can't go wrong. These things are super bright, not sure about 900 lumens but who cares. The ones I received seem to be a little different than the one pictured. They work very well, I can light up the neighbors house 3 houses away. All the reviews say there is no memory in the switch but mine totally do. I can click through the different settings or just click it on and off and it always stays on the high setting. A little pricey getting good batteries and charger but these are great lights.
First, if you're expecting this to be equal or superior build quality and feel to a SureFire or other expensive name-brand light, don't waste your time. It's an inexpensive light and it feels like it compared to my SureFire E2DL. That said, for the price this is AMAZING! For the cost it puts out about the same light as my 200-lumen E2DL which cost 10x more.Pros:-Puts out about as much light as my 200-lumen name-brand LED tactical light just slightly less focused (but still very usable)-Has high/low output to turn night into day when needed but also provide long runtime for every-day or emergency lighting use-Rigid metal body feels sturdy-Comes with a wrist-strap (though I don't know if it would break away without injury if someone grabbed the light)Cons:-Bezel isn't as sharp and has fewer "teeth" compared to name-brand tactical defense lights like my SureFire E2DL-Batteries [SureFire 123A] rattle slightly when shaking side to side (probably fixed making a paper tube insert)-Doesn't always turn on at maximum tactical brightness-Occasionally when changing batteries the spring won't make proper contact and you must remove/reinstall the tailcapThoughts:-It seems to have memory so if you remember to turn it to high for 10 seconds before turning it off it will remember and turn on at full power the first click-While I don't have any weapons to mount this on, it feels like it may not hold up well to recoil given the slop with the batteries fitting in the tube and minimal issues with the spring contact when replacing batteriesBottom line:Personally, I would never give up my SureFire E2DL with it's rock solid feel for this even considering the price.
works good. Very pleased. Would recommend it. Husband used on the job and says it works great and says it is useful
thought I was getting a 1000 lumens flashlight, however, it's bright and is far better than any standard flashlight on the market...excellent for seeing whatever you'd like at night and is tactical if needed...
this sucker gets hot when you use it for too long, otherwise great light for the money. Get this now
this light is no joke guys at work all want one one guy went out and spent $200 plus on another stream brand and this little light was brighter than his
Answer: yes