Lamp Resource:400 Pixels per square meter each pixel made by 5050(RGB in 1) leds Input Voltage:AC 90-240V 50/60hz Power Consumption:28W Protection Rate:IP55 Working Time:up to 100,000hrs Working Temperature:-10 to +40 degree Material:Industrial ABS base+Toughened glass top cover Control Way:Bio-elertricity sensitive(same working way as IPAD) ,Auto, Computer program Size:50x50x5.8cm Packing size(4 in 1) 57cmx62cmx65cm N.W:8.5kgs G.W (4 in 1 carton):38kgs/carton Burden weight:300kgs per panel Certification:CE & ROHS and patent of floor base