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Silicon · 15th Oct 2014, 7:02 pm

If it is not using PWM technology and is acting like a big variable resistor it will need a big heatsink and a good flow of air.

Suppose it drops the voltage by 6 Volts and limits the current to 8Amps.
It will dissipate 48Watts of Power as heat.

15th Oct 2014, 7:02 pm	#19
Silicon Nonode Join Date: Jun 2007 Location: Coulsdon, London, UK. Posts: 2,171	Re: Transistor equivalent If it is not using PWM technology and is acting like a big variable resistor it will need a big heatsink and a good flow of air. Suppose it drops the voltage by 6 Volts and limits the current to 8Amps. It will dissipate 48Watts of Power as heat.