I use this power supply for a track section through a booster of a digital model railway layout. The voltage used by me of 18V is stable and then the available output current of 3.5 A (up to and including. 15V there are up to 4 A) can easily operate a garden railway. Especially with garden paths high currents are often needed for twin-engine locomotives with sound, smoke generators and other additional power consuming components, car-lights and signal boxes. The up to 24 V adjustable output voltage is also sufficient voltage reserve. As of 16 V, however, there some loss in the available output current, it is reduced from an initial 4 A to 3.5 A and 24 V it is reduced further to just under 3 A. Since my booster may only be loaded up to 3.5 A and would then automatically switch off anyway, which is not relevant to my application. Overall, I am very satisfied, especially for the price! Unfortunately twice as expensive transformers are for model railways often still offered that for a secondary power of 50 W at idle alone is 10 to 20 W from the 230V mains "suck", so that they also hum nice and warm :-( . This switching power supply, however, consumes at idle virtually no power. It takes just as much power from the grid as needed. Even model railroaders should save power wherever possible! Then the hobby also makes more fun! ;-)
Warm or even hot will my power supply even after prolonged operation yet. I run it but also not constantly under full load and can therefore not be clearly assessed.
The 70W maximum power is only true in that they apply for an output voltage of 20V (3.5A * = 70W) and 24V (2.9A * = 69,6W). Actually, the power would have to 12V at 5.8A lie, but that just is not right, the manufacturer shall indicate in the datasheet 4.5 A, but is on the label on the device:
DC OUTPUT: 12V / 15V @ 4A MAX 16V / 18V / 19V / 20V @ 3.5A MAX [Email protected] MAX
Among the supplied adapters and their handling, I can not comment because I do not need them ...
For the product as such I forgive five stars, in the confidence that it will continue to function properly and the information on the label on the device definitely correspond to the truth ...
