5V-12V Step Up to 300V-1200V DC-DC Boost Converter High Voltage Power Boost Module
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Looks like is good! Thanks!
thanks for my orders safety.
Nice booster. Using it to replace high voltage batteries in my antique Geiger Counter!
Can somebody explain what does it mean by the following line from description - " if you want to add current, please put insurance below the transformer replaced the 0-ohm resistor, maximum 50mA, but does not recommend increased.)" BTW it came very soon . very pleased.
Tested and reached the desired voltage
Good
Cospa is the best. Easy to use and easy to adjust voltage in VR is also attractive. The high voltage output terminal is small and convenient.
Great high voltage booster, ideal for Geiger Müller tubes.
I am very satisfied and fast delivery thanks
Nice product.