Sunpower 50w enclosed dc dc converter 3 3v 15a sunpower sps 060 3 3 p the sunpower sps 060 3 3 is a 60w single output enclosed power supply that has improved efficiency as a result of modern circuitry the mountings are standard being identical in construction to products of other power supply manufacturers making this psu an ideal replacement it has a very long service life thanks to the integration of high quality components such as nippon chemi con capacitors or similar thus high mtbf