The SpectrAlert Advance SPSCWHK is a white, outdoor speaker strobe for ceiling installations with selectable strobe settings of 135, 150, 177 and 185 cd.
Offering power ratings of 10W (L-PJM10A) and 20W (L-PJM20A), these two speakers are very popular for both outdoor and indoor use. They both come with a fire-resistant cable and boast sturdy aluminium