All our DC to DC voltage converters use efficient switched-mode technology and they
are all made in USA to a high standard.
Use these DC voltage converters wherever you need an independent power supply. Note
that you can efficiently step DC voltages UP or DOWN by several volts depending
on which converter is used.
Each type of converter has a maximum power handling capability, specified in Watts.
It is usually calculated by multiplying the maximum permissable voltage by the current
being drawn. For each type of converter the efficienty drops off as you get
closer to the limits, so it's best to choose a regulator that will not be close
to being overloaded.
If you are unsure of what sized converter to use, you should measure the current
being used by your load and multiply by volts. Here's some examples:
Digital camera - says it uses 7.4V. Measured up to 1A when flash is used. 7.4V x
1A = 7.4Watt.
LiPo battery charger from a Solar panel. Use a DE-SWADJ3 and don't charge your
batteries at over 2000mA.
Mobile phone charger - Look at the supplied power supply. They usually output 5V
at 300mA. 5V x 0.300A = 1.5W.
Refer to Wikipedia for a good explanation of
DC to DC converters.