Voltcraft single output 100w dc power supply voltcraft lrp 1205 the voltcraft lrp 1205 portable single output 100w dc power supply has a variable dc switched mode power supply with an 85 efficiency rating with adjustable voltage 04 to 20v dc and current 0 to 5a the power supply offers ovp over voltage protection and is suitable for use in labs education or in the hobbyist workshop voltcraft lrp 1205 single output 100w dc power supply