Voltage Doppler for 6v lead acid battery

[jheff]

Is it possible to put a Voltage Doppler to a 6V lead acid rechargeable battery that makes a 12V bulb or anything that lights. DC connection. pls help .. thanks

And how much is a peizoelectric nowadays?

 

[Hero999]

Is it possible to put a Voltage Doppler to a 6V lead acid rechargeable battery that makes a 12V bulb or anything that lights. DC connection. pls help .. thanks

What's a voltage doppler?

And how much is a peizoelectric nowadays?

No enough information, piezoelectric materials have 100s of applications.