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: Can you hook this up to anything and use it as a power source?   Can I hook it up to a light bulb with a special cord and light the light bulb up...
Document: We thought this would be a great addition to a emergency kit, bug-out bag, or our camping gear, but we were disappointed. While the light works just fine, the USB port is pretty much useless. You have to crank the charger at full speed in order for an iPhone to recognize that it's even plugged into a power source. Anything less than full speed and it's not enough energy to charge a cell phone.
The Clipray charger/flashlight throws somewhere around 50 lumens of light and is as bright as an average small to medium flashlight; which is impressive considering the cost and power source of this product. It is well worth having around if you just use it for emergency lighting.The USB charging function does work and is great for charging portable devices if you lose power for an extended period of time.
The included battery has a female USB adapter which I can use to hook into my Clipray and charge up when the sun is down or on overcast days, and when a power socket is out of reach.
The item seems well built and worked well when I tested its functions.I just recieved it and have not had a chance to use it in the backcountry yet. I bought it as a backup power source for my camping trips out in the boonies. I will update my review once I have had a chance to try it in this capacity.
What can I say...You need this! I have cranked up my cell phone 3 times from a low battery in about 5 minutes of slow and steady. The flashlight is nice and bright. Just make sure you have a cord to hook to your cell as none comes with it. Put one in my car and one in my girlfriend's, in a jam light and a working cell phone can be the difference between miserable and safe or maybe even life and death. Don't leave home without one!
I bought this flashlight to use as my primary source of light at night time, and it has not disappointed. The casing is nice and sturdy, and has so far withstood many drops. I also like the built in clip. It's solid enough and the perfect shape to allow me to bite onto it to hold it when I need two hands. The crank is nice and sturdy, and does not have to be turned fast at all to produce light.
The clip seems sturdy and spring inside is hard compress which is good because it won't come off easy when clipped to a pack or belt loop. I bought it for camping because of the crank and clip. Much lighter than batteries and clip for belt loop or hanging inside the tent.MAIN USB power source: NOGood/bright light and small:YES
Pushing the button once keeps the light on, you don't need to continually press anything.The clip is a nice feature, I put it on my belt loop for illuminating the area when I need to use both hands.I can verify that the USB charger does work, but for modern cell phone batteries it really is a worst-case emergency backup.
I put this light in an emergency kit I made. It is very bright and stays bright with only a few cranks. It will charge a cell phone as it has a usb cord plugin. However, I would buy a an emergency cellphone charger battery to store all your crank power. It appears to take a lot of turns to charge a cell phone by itself. For its main purpose, light, you can't beat it.
It doesn't recharge a phone fast enough to be useful for anything except emergency calls. and even then, we're talking 15-20 minutes of pumping for 1 minute of phone use on a smartphone. It is good if you're stuck in the middle of nowhere and need to make a call, and the light is very bright and decent. If you're hoping to buy this to solve on the go battery problems, just buy a battery pack. save you alot of time and money.
Answer: yes