Footnotes - 75C Max Case Temperature - Install in accordance with National Electric Codes - Input Frequency: 50/60Hz. - Minimum Starting Temperature: -4F/-20C. - Normal ambient temperature: 77 F / 25 C - FCC 47 CFR Part 15, Class B - Dry location use only - UL recognized Class 2 Power Supply - UL 1310 recognized - UL 48 recognized - Sign accessory