Gentex GECR24PWR (904-1333-002) Horn/Strobe GECG24PWR (904-1331-002) the L-Series utilizes a universal

the L-Series utilizes a universal mounting plate for all models with an onboard shorting spring

alignment is assured without secondary adjustment

Here are some features of the Simplex 4099-9004:

2 Wire Plug-In Base Designed For Use With The Following Simplex Detector Heads:

The power supply will recognize the type of input being supplied and pass this through to the outputs with the same pattern

Gentex GECR24PWR (904-1333-002) Horn/Strobe GECG24PWR (904-1331-002) the L-Series utilizes a universalGentex GECR24PWR (904 1333 002) Horn Strobe, Red Lens, Selectable Candela Strobe, Wall Mount, Plain (No Lettering), Red Faceplate