This is a GE CMH70/T/UVC/U/830/G12 lamp.
This is a 70w G12 lamp in colour 830 - warm white.
These are single-ended discharge lamps with a high efficiency.
These CMH-T lamps maintain stable colour over their lifetime and emit a crisp, sparkling, warm white light.
CMH-T lamps are frequently used in shops, shop windows, public buildings and offices.
CMH-T's can also be used outdoors for floodlighting and pedestrian areas.
GE part code - 20005 Equivalent to Philips CDM-T 70W/830 Lamps