If you touch the lamp you add to its capacitance and it takes longer to charge the lamp detects this time difference and turns on.
Are touch lamps safe.
People especially appreciate touch control lamps beside their beds as they can be turned off and on with a simple touch instead of probing around for the on off switch.
It s safe because the current is incredibly low.
Voltage stings current kills.
The lamp knows how long it takes to charge itself.
When you touch the lamp your body adds to its capacity.
It is even possible to buy little plug in boxes that can turn any lamp into a touch sensitive lamp.
They work on the same principle.
Touch lamps are energy efficient and use little electricity when plugged in.
Even if your touch lamp is a floor lamp or a table lamp or if it screws into the wall you still do not need a special bulb.
It takes more electrons to fill you and the lamp and the circuit detects that difference.
However be careful with touch lamps that have cables since children can pull them and that is dangerous.
Touch lamps are a wonderfully convenient invention.
They use very low current and the likelihood of causing injuries is very low.
The lamp s mechanisms are internal and the bulb does not affect them.