14-06-2015, 03:31 PM
I use a 40w for most radios which are 40w to 65w appliance draw, 60w for a TV or something over 100w draw, 100w for bigger stuff.
40w will glow with a definite amount of light output with a 50w appliance. With 60w bulb you will be able to see the filament. 100w will barely warm up.
It matters little really, any wattage between 40 and 100 will limit the current with practically all radios and serve to prevent fuses blowing due to shorts which is the main reason for using a bulb limiter anyway..
If you need to control the current you really would be better using a variac.
40w will glow with a definite amount of light output with a 50w appliance. With 60w bulb you will be able to see the filament. 100w will barely warm up.
It matters little really, any wattage between 40 and 100 will limit the current with practically all radios and serve to prevent fuses blowing due to shorts which is the main reason for using a bulb limiter anyway..
If you need to control the current you really would be better using a variac.
Boater Sam.
