04-05-2019, 07:38 PM
An additional small transformer (I recently bought 2 larger ones, 3A 12V, for $6 each) is electrically ideal way: there is no power dropout, except for parasitics. All other ways result in power dissipation.
Expensive it is not, if bought on eBay.
Expensive it is not, if bought on eBay.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.