Specifications include, but are not limited to: 2.1.2. Operation 2.1.2.1. Continuous, 24-hours a day, 365 days a year 2.1.3. Flash pattern 2.1.3.1. .5 second on / .5 second off 2.1.4. Input voltage 2.1.4.1. 12 volt 2.1.5. Solar panel 2.1.5.1. 13 watts or greater 2.1.6. Battery 2.1.6.1. 12 volt, 18 amp hour 2.1.7. Light Emitting Diode (LED) 2.1.7.1. LED shall be Institute of Transportation Engineers, Vehicle Traffic Control Signal Heads - Standards (ITE VTCSH) Compliant 2.1.7.2. Size – Twelve (12) inch diameter 2.1.7.3. Color option: 2.1.7.3.1. Amber 2.1.7.3.2. Red 2.1.8. Physical Design 2.1.8.1. Housing color options: 2.1.8.1.1. Black 2.1.8.1.2. Yellow 2.1.8.2. Mounting option 2.1.8.2.1. Top or side mount to 2.5 inch Telespar post 2.1.8.3. Housing color, LED color and mounting options will be determined by the Department at the time of order.