CM4T White 4" Ceiling/Panel Speaker 100V/16ΩThe CM4T is the ideal match between size and sound! Just one size bigger than a halogen spot model (CM3T), this 70 100 volt loudspeaker looks great and produces an amazing powerful sound. For 100 volt systems, different power taps are present on the high quality built in line transformer: for background music with low background noise, you can use the lower power taps. For maximum sound pressure level, use the highest power tap. It is ideal for those