Mackwell D128+ Micro Integrated Module 3 or 4 cell please select

Both obsolete, we still have the 3 cell Trisonic version . No 4 Cell variants are avaialbe 

The Mackwell D128+ is an M1/M3 4 cell combination emergency module and ballast to run 1 x 28w 2D compact fluorescent lamps. This module is designed for single lamp operation and can be used for 1 or 3 hour emergency duration.