+ If you like it, about 8 different, interesting flicker and blink effects has available. Of course, these effects can be switched off.
+ More important I find the successful in this article dimmer function.
+ For brighter / darker each have their own button. The dimmer function is implemented in 7 steps, not continuously. But is OK.
+ On / off via the controller is possible.
+ If the supply voltage is switched off, the unit will start later when switching back to the last setting.
+ -The Keys are probably not designed for continuous exposure, at this price, but perfectly acceptable.
The whole part is enclosed with printed shrink tubing.
Who'd prefer to use an almost equivalent controller with ready attached plug & clutch, takes the same vendor also such a thing:
Amazon.com/gp/product/B00DSG5E3Q/ref=oh_details_o00_s00_i02?ie=UTF8&psc=1
