Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: I got a homemade scooter that's electric start. I need to keep the 12v battery charged and run lights. Any way to do that with this generator ?
Document: I got this with the headlamp and tail light (12 Volt Generator Light Set / Never Buy Batteries) for night riding. I do a lot of trail riding in the everglades and needed a power charging system to keep Android Cell/GPS up and running.
I then soldered a 12v DC car outlet in and presto! I'm adding "BESTEK car cigarette lighter socket usb car charger" to provide power regulation and USB output. I can now charge my "Magbox 12000mAh Backup External Battery Pack" or run accesories directly. I also added "5 Watt Foldable Solar Panel Charger" (5V, 1A) for daylight charging.
I use one of these to recharge a 12v battery which in turn drives a series of EL Wire and persistence of vision LED displays that decorate my bike. I had to create my own circuit to stabilize the voltage and convert it to clean DC. But the generator is rugged, built solidly and with good bearings. As another reviewer pointed out, the knurling on the drive wheel of the generator is plastic and wears out rapidly (few months).
This way, the o-rings make contact to the bicycle tire, instead of the generator's plastic drive wheel. The o-rings will wear out, but they are cheaply replaced. Had Tung-Lin put a metal drive wheel on their generator, I would have given the product five stars.With the lights connected, I measure 16 VAC at the headlight terminal and 4 VAC at the taillight terminal at a frequency of about 150 Hz.
It works like a charm. It will take about 8 to 10 bikinghours, but it does work.So if you don't have access to the grid, and you must charge your power hungry laptop while biking and have itready for use at your destination, this is the best way (maybe even the only way) to do it.Here is some dimensions of the generator bottle just in case you need them:weigh: 0.75 lb.
I decided to settle the issue. I deviced a way totemporarily mount a multimeter on my bike and attached the test leads to the output terminals of the dynamo. In this way, asI am ridding my bike, I can measure the AC voltage of the dynamo. Also with my bicycle computer, I can read off the speed atthe same time. Here is the results:At 15km/hour, I got about 15V AC. At 20km/hours, I got about 24V AC (both without load).
Bought this generator and three of these:LED MR16 7000K Cool White Spotlight 12V 4W (440 Lumen - 50 Watt Equivalent) 45 Degree Beam angleMounted the Generator on the Rear Frame.Mounted TWO of the 12v 4w LED lights on the Front on the handle bars.Modified the Rear Reflector and inserted the third 12v 4w LED into it.Note:  The LED lights don't come with any type of mounting hardware.Use your imagination. Create your own housing or mounting solution for the lights.
LED's need to be current regulated, period! An LED is a current SINK. A generator is a current SOURCE. If you set up your LED lightoliers so that they can handle the current output of your generator, the generator will automatically voltage limit to provide it's maximum design current. In other words, an LED headlight assembly that can absorb 750 ma. at 10 volts, will keep THIS generator output (to the // LED strings) at 10 volts up to 750 ma. of current draw.
I have LED lights on bike. I tested the Dynamo's power output and it works well, Was easy to setup. I guess I will need to buy a new lght so I can use this.
i got this for a generator to charge my go kart batery for my radiowhen i got it mounted and relized with a meter it's ac.
Answer: yes