So has brought something; more can not reach probably without an "active" cooling.
Sticking lasted thanks to the ready-mounted Wärmeleitklebebands few moments and is really easy. When voltage converter in addition to the capacitor on the edge of the board in mind that maybe even the cover it needs to, so leave room. Remains alone nor the durability ... I can not say anything about it.
Clearly Simple low-cost solution, foolproof installation, good quality shows an effect: Full marks!
