LED Flashlight
(49)
LED Lamp Cup
(31)
LED Bulb
(18)
LED Power Light
(9)
LED Headlamp
(18)
LED work light
(12)
LED Stage Lamp
(6)
LED Light Tube
(4)
LED Down Light
(22)
LED Grow Light
(5)
LED Light Strip
(13)
LED Wall Washer
(13)
LED Rope Light
(3)
LED Puck Light
(5)
LED Dynamo light systems offer exceptional reliability and superior light yield vs standard bicycle light systems. This is an evolutionary tutorial on how to power such systems from a dynamo. As you read, you will come across a variety of circuits that can be built at home.
They are typically made by manufacturers such as Philips-Lumileds, Cree, Seoul Semiconductor. At the time of writing, these LEDs are subject of rapid improvement. In 6 months from now, a new model of power LED Dynamo light will probably make todays most advanced LED Dynamo lights look dim. There could even be new manufacturers pushing on the market with superiour LEDs. Due to this, I never recommend any specific part number for the LEDs. The driver circuits are not affected by the type of LED used, as long as it has the typical forward voltage of a white LED.
You might want to know what sort of light output to expect from the circuits on this page. Well, you will only find LED power here. To know the Lumens, you have to download the datasheet of your LED of choice and look up how many Lumens it delivers for the Watts you feed it.
In order to build a bright light, you have to pay attention to three parts: The driver circuit (better if it delivers more power), the LED Dynamo light (better if they produce more Lumens per Watt), and the optics / reflectors / lens (better if their efficiency is closer to 100%).
