The Wheelock high performance Series ET Speakers Strobes provide high audio output, clear audibility, dual voltage (25/ 70 VRMS) capability and field selectable taps from 1/ 8 to 8 watts. They are designed to meet the critical needs of the life safety industry for effective emergency voice communications, tone signaling and visible signaling to alert the hearing impaired. The low profile design incorporates a speaker mounting plate for faster and easier installation. Each model has a built-in level adjustment feature and an aesthetic two (2) screw grille cover. The Series ET Speaker Strobe models incorporate Low Current draw Series RSS Strobes. Strobe options for wall mount models include 1575 cd or Wheelock's patented MCW multi-candela strobe with field selectable candela settings of 15/ 30/ 75/ 110cd or the high intensity MCWH strobe with field selectable 135/ 185cd. Strobe options for ceiling mount models include 1575 cd or Wheelock's patented MCC multi-candela strobe with field selectable candela settings of 15/ 30/ 75/ 95cd or 115/ 177cd.