Model: LD202 This LED display driver board features the following specifications: 1. CDrives 4 channels of LEDs at Up to 250mA 2. ±1.5% Accurate LED Current Matching (Typ.) 3. Wide Input Voltage Range: 10V to 30V 4. Output Voltage Up to 80V 5. Operating temperature range: 6. 0? to +55? ( Normal ) , -30? to +80? ( Wide temp.) 7. Storage temperature range: 8. range: -40? to +60? ( Normal ) , -40? to +80? ( Wide temp.) 9. Operating humidity range : 0% to 80% (Non-condensing) 10. Storage humidity range : 0% to 80% (Non-condensing) 11. Multi-protect functions : 12. Support PWM dimming controls 13. Power MOSFET over-current protection 14. LED short circuit protection 15. LED open string protection 16. LED return to ground short circuit protection 17. Over-temperature protection 18. Over-voltage protection 19. Meet RoHS requirement.