There are extremely high powered LEDs out there ... The body of the headlamp was milled out of aluminum, with a space for the LED in the front and channels in the back for coolant.

One is laid bare by [WizardTim], as he cross-sections a 20KV high-voltage diode. A conventional low-voltage silicon diode has a forward voltage drop of about 0.7V and a relatively low maximum ...

Now, Germany’s Fraunhofer Institute for Laser Technology (ILT) says it has made significant progress in high-power diode lasers. It has transferred ... from Fraunhofer IWS with a team of researchers ...

The research was led by Prof ... Bipolar devices, such as pn diodes and bipolar junction transistors, hold promising ...