With a 12 V supply and a 2 ohms load, this circuit can provide a power of the order of 8 W. The integrated circuit must be mounted on a heat sink. The source must provide at least 3 A.
This circuit, which uses components still common today, was found in a 1997 documentation. It...
This circuit with its light source was found in American documentation two years 70. Or...
This circuit was found in a Philips documentation from 1966. The circuit provides 1 mW with a...