With the LED hand crank Jonta you get the best in hand-crank conversions, and the long lasting durable LED brings even more efficiency. The 1 watt Luxeon Star LED, makes the Jonta the most impressive wind-up flashlight we have seen. It shines an incredible amount of light while still offering a lot of burn time per wind. In our test you can still see objects clearly at over 50 ft. in the energy saving mode, and it is rated for 3 times that far on the max setting! It really must be seen to be appreciated. The LED is also very durable with a rated life of 100,000 hours. With only 30 seconds of cranking, you can expect 10 to 20 min of burn time (on the energy saving mode). With approximately 40 min of cranking, you will get a full charge on the internal NI-MH batteries. With a full charge you get 24 hours of light on the energy saving mode, and 2-1/2 hours on full power. The Jonta has three settings, energy saver, full power, or a strobe light. It comes with an AC power adapter which will give a full charge in about 4 hours. One of my favorite features is a three LED battery power indicator, one LED means 1/3 battery charge, two LED’s 2/3, three lights full charge. The Jonta also has an LED charging indicator that lights up when you are cranking at the optimum winding speed. It comes with a carrying strap, and measures 8.5 in long by 3.4 in round, and weighs about 1 pound.