LISTEN LS-R301A LED Receiver LED display Card Specifications:
| Performance | Typical values | Maximum |
| Single card area | 256 x128（fullcolor） | 512×128（fullcolor） |
| Output data | 16 part | 16 part |
| Gray levels | 4096(4k) | 65536(64k) |
| frequency | 15MHz | 32MHz |
| Refresh rate | 300Hz | >4096Hz |
| Loss of brightness | 15~20% | <5% |
| Other properties | Opening screen fade protection, network dropped detection,
OE polarity toggle switch control line scan screen protection tube, LED screen self |
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