i2Systems Apeiron PRO A503 - 3W Spring Mount Light - Round - Cool White - White Finish [A503-31AAG] Brand_Infinity The carbon flange is

The carbon flange is

This omni-directional 9dB gain cellular antenna improves signals on cellular (810-900 MHz) and PCS (1800-1990 MHz) bands

You also can upgrade to high-performance Garmin CHIRP technology

Factory P/N GP9305

i2Systems Apeiron PRO A503 - 3W Spring Mount Light - Round - Cool White - White Finish [A503-31AAG] Brand_Infinity The carbon flange isApeiron PRO A503 3W Spring Mount Light Round Cool White White Finish The Apeiron PRO 3W is the worlds most technologically advanced Marine LED downlight. Truly a first of its kind. A finely tuned blend of classic style and the latest digital technology Built with True to Life Color. With 90+ color rendering (CRI) , engineered optics, and i2Sync Technology, expect beautiful, consistent white light. 1% Dimming Smoothly dim to a low level, 1% intensity