AC Powered LED Road Construction Sign; is ideal for all construction areas like roads, highways, parking lots. etc. High day and night visibility are ensured by a reflective surface and LEDs.  Can be easily mounted on U- shaped pole or pole with Ø5.0 - Ø7.5 cm diameter. Technical Features Dimensions : 60 x 60 cm Weight : 5,5 kg Material : Polycarbonat Reflective ASTM D 4956-11a Tip I Flasher period:  54 fpm Voltage: 12 V AC / 220 V AC Operating Temperature: -20°C / +60°C