This TS15 Series illuminated broadcasting button’s SPST,momentary function and 250gf operating force;this control panel LED push button has rating of50 mA at 12 VDC and a travel of 0.4 mm,the TS15 series Illuminated LED Broadcast Backlit Buttons offers three clear cap sizes in 12*12mm and 15*15mm as well as 16mm,what’s more,we provide the engraved legends on thesculpturedcaps.