{HEAD ~ an on/off switch} on the housing and electrically connected to said operational circuitry and to said {TAIL ~ power source} to activate said operational circuitry when said on/off switch is in an on condition and to de activate said operational circuitry when said on/off switch is in an off condition; and 
{ HEAD ~ an on / off switch } on the housing and electrically connected to said operational circuitry and to said { TAIL ~ power source } to activate said operational circuitry when said on / off switch is in an on condition and to de activate said operational circuitry when said on / off switch is in an off condition ; and
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL OTH OTH OTH OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH