A wind-powered shark light from ebay. This is a light that you stick on the top of your vehicle and, as you drive along, it is wind powered and it makes the leds light up inside. So the listing for this says wind powered shark led light. High quality shark led light, led light flashing when your car moving over 25 miles per hour, no battery needed generate electricity by front fan.

Spin size 14 by 6.5 centimeter material pvc, easy install on your car. With this strong tape, it goes on the double-sided tape. Compatibility make your car more attraction, especially at night more safe. With this led light to warn other drivers.

The shark led light is made of front fan and inside wire coil useful to know so i can show you this. I think if i don't show you, people will complain, but i'll show you operating, but to do that, i'm going to have to take the exposure off i'm going to have to turn this light off and then there's going to be lots of noise. As i blow forcefully past this, and hopefully the uh, hopefully the camera will actually flatter it, because it's not very bright. I think that probably kind of showed right one moment please and bring the light back watch your eyes.

The light is back. Hopefully, that looked okay, that you actually saw the lights two in the top one on each side, right um. So let's take it to bits i'll show you the pads first, that you stick this on with i'm, not sure how easy it's going to come back off. Your car once you've stuck it on, but you've got a pad at the front here and a pad at the back, and it is kind of the body of it is curved, presumably to accommodate the appropriate bodywork.

I have after looking for a while to see. Are there any screws? I had discovered that the bainic caps off and has screws, let us open it. This was suggested by eric and when he suggested it. I did recall that i bought one a while back and was unenamored.

It was not impressive. This one is equally not impressive. The reviews are a mixture of positive and other ones, saying it's extremely noisy. I had to take it off, and that is true.

It makes loud screaming rattling noises as you drive along the road. This may suit some vehicles. Is it gon na have the same construction? I think it has the same construction as the one i got ages ago. Oh, that is very basic.

Let's zoom down in this, so here's the little coil for the generator and it's got two wires coming off it going to these two leds in parallel, and then it's got a couple of leds over at the back in parallel as well. Now i wonder if they're i would guess, let's try powering these up with the diode setting. Well, this might not work. Actually, i can always just snap one of the wires off that little uh generator thing.

Well, let's see what happens if i stick it across. It's going to make the leds glue, i expect them to be, i don't think there'll be any polarity as such. No that's just that's going to i'm going to have to snap on those little wires off. It's not going to be difficult.

The hardest bit is getting hold of the wire. It's very thin. It's like human hair right, tell you what let's see if it makes the leds glow. Now i can see a red led glowing at the back, and i can see the green led glowing.

I've not seen the blue leds go yet all right. I actually investigate that afterwards, let's investigate this little generator thing. I shall try popping the blade off it by leaving it out gently from the back. Oh it didn't take much.

There's your little turbine there's the little generator i shall just snap off completely. So how is this assembled? Am i going to be able to get this apart? Am i going to have to unwind it to get it apart? I think i may have to do that. I'm not sure the construction of this, but i shall find out i'm not really planning on sticking it on my vehicle, so i will probably just open this. If i it's, what i think it is, it will have a little neodymium magnet inside if that and that will spin in the side of these two coils radio.

I shall i should take that apart and we'll take a look at it afterwards, um right, in fact, i'll do that right now and i'll analyze, the wiring of these leds to see which ones are in which polarity one moment please it has been explored, and here Is what is inside? Well? Basically, it's like quite a lot of windings, the little generator itself, which is super simple. The plastic housing has a back that comes off it, which is actually held in place for the wire. The windings and inside is a cylindrical magnet with a north face and a south face that spins in between the two windings. So i'm guessing the windings must be sort of opposite directions.

They must wind up one direction, skip off and go the other. It's worth mentioning that i presume that the windings were supposed to be wrapped around these little pins in the side, just for strain relief, but they weren't they were just taken straight off over this must be made in the house, i'm guessing um. The leds are wired, as shown we have the spinning magnet. We have the two coils and it just creates an ac output, and it will pretty much almost be a sin near soil output, except that that will be clamped by the leds uh.

The three gallium nitride leds, two blues and the green are one polarity and the less efficient and also lower voltage red led is in the opposite direction. So, basically speaking when i was blowing there, it was alternating red and blue blue green, so the red was only lit at one time and then the others were a little other. But because it's spinning at high speed, you wouldn't really see that. So it's a very, very basic, it's a it's more of a knowledge than anything else.

It's a gimmick, but i suppose that if you like the stuff on your vehicle, then that's okay. I mean it's quite nicely made it's quite stylish um, but perhaps they could have done with something like am i being too demanding expecting a bearing in here? It's literally just running the plastic, and that means that with weather and schmoo ingress, it's probably not going to last that long. But then again it is, as i say, a novelty. It wasn't that expensive and uh.

I suppose it only has to last as long as until the nobody novelty wears off, or it just blows completely off the top of the vehicle, but there we go, that is the wind-powered shark light for boy racers.