Science sheds some light on how a no battery flashlight works.
A shake flashlight or hand crank flashlight uses the principle of magnetic induction. When you crank the Readylight no battery flashlight, you agitate a magnet that is surrounded by a copper coil. This produces sufficient voltage to power the five super-bright LEDs.
More efficient than a shake flashlight.
Light up someone’s face with the gift of a hand crank flashlight.
Because it can be used anywhere, the Readylight makes a brilliant gift. Give your loved ones the flashlight that outshines a shake flashlight. With no batteries needed and long-lasting LEDs that are good for more than 11 years of continuous use, there’s nothing to replace, ever! Order now.
Customers most agreed on the following attributes:
These flashlights are wonderful. I have children in college and they all have them as well as in laws and parents. The nice thing is not having to worry about the batteries running out! This is a great product!
[1 of 1 customers found this review helpful]
Husband gets a new flashlight every holiday but he had yet to find the perfect one. Now he says he's done. "Best light I've ever had!" Little does he know I bought 2 and he's getting one on his birthday to keep in the boat. Great product!
Brilliant! Both in light it provides and the whole concept. This is the most useful torch [OK! flashlight!] anyone could have anywhere. Wish we could get them in Southern Africa. I'd love everyone living without power to have one. What a life saver.
It was one of the best Christmas presents we've ever had. Thank you.
[2 of 2 customers found this review helpful]
The 15 to 20 minutes of bright light seem to be on the high side. I only get 4 to 5 min. of bright light and maybe another 2 to 3 of usable light. I use this for work and the shape is on the bulky side it pops out of my pocket now and then and has taken some hard falls onto cement floors but it still works and I haven't changed a battery for two years it just needs to wound up a little to often for my taste. Still a good product probably more well suited for home or car use.
[1 of 1 customers found this review helpful]
Bright and well-focused light that seems to last forever on a couple of cranks of the handle. Good ergonomics. May be a tiny bit large for the glove compartment. Ideal for intermittent use where batteries are always dead when you go to use them. A novel, fun and useful product!
We have one in our house and one in the car.
[1 of 1 customers found this review helpful]
Great purchase. We use the flashlight all the time. No need to keep fresh batteries in the flashlight, just wind and use. We lost electricity recently and it was so nice to have a working flashlight in the house. We take it on vacations and camping. We keep an extra in our car.
[1 of 1 customers found this review helpful]
The item is great because one does not have to buy batteries, which are a real polluter of the environment. But I just saw a similar item priced at [$]; which is a big price difference.
[1 of 1 customers found this review helpful]
Heavy duty compared to others. Select one LED or ALL at once, maximum light or longlasting area lighting.
[1 of 1 customers found this review helpful]
I gave this product to my parents for a gift, and they loved it. It will be handy when the power goes out at their house. They won't have to worry if they put batteries in the flashlight anymore.
[1 of 1 customers found this review helpful]
Works great! I use it all around the house & in the car. If only it was cheaper & came with a radio...
[1 of 1 customers found this review helpful]
Comes in handy all the time. Never have to worry about batteries being dead. I'm planniing on purchasing two more... one for my daughters dorm room and one for our emergency home kit.
[1 of 1 customers found this review helpful]
This flashlight rocks! I have been using Maglite flashlight and many others, but this one is the best. Friend of mine, once he saw this flashlight, asked me to purchase for him next time I have a chance. I used it in dark garage, on a road trip, changing tires in the dark, working on a car. It's very bright and the powerful LEDs can blind you at night. No batteries...simple cranking for 30 sec will give you solid 15 minutes of constant light. It's bit sizey - but that's a minor thing. Highly recommended!