Standard, non-battery version: Yes. All electronics for the LRP standard (non-battery) exit are located in the panel section (PNL). To convert FRP non-battery to LRP non-battery, order a LRP PNL section ( example: LRP 1 RC 120/277 PNL) only. Customer can use the existing (FRP) fluorescent rough-in section, but, should remove the electronics.
Emergency, battery version: No. Electronics needed to support the LED exit are different than those used to support the fluorescent product. Complete LRP Exit (including panel section) would need to be ordered.