First line: Transistor D 799 BM-08F58MDAbstract: .. 1. The BM-08F58MD is a 20.3mm 0.799" matrix height 5×8 dot matrix display. 2. This product use super red chips, which are made from AlGaAs on. AlGaAs substrate. 3. This product have a black face .. Tags: Transistor D 799BM-08F58MD