TechnologyRotational molding Size 20cm,25cm,30cm,35cm,40cm,50cm,60cm,80cm Working Temperature-40鈩?to + 70鈩?/p> MaterialPE IP DegreeIP54/65 Light Sources5050 & 3014 SMD, EPISTAR Input Voltage100-240V Output Voltage4.2V BatteryLithium Battery Lift Time50,000hrs Charged Time4-6hrs Working Time8-10hrs Color16 colors for change, 4 modes flashing Load Bearing Capacity50-250kg Warranty12 months Product Speciction: Product feature: Wireless remote control, options for colors: dim, flash, smooth, fade, strobe, on & off Made of durable, sturdy polyethylene, comes with batteries and charger Comes with a comfortable pad on top Comes with chargeable LED lights that glow up to 8 hours, easily recharged. Comes with 16 different colors: white, 3 primary and 12 accent colors All the glowing furniture is opaque and has an LED light inside that turns any of 16 different colors Where to use: 1.Can be placed in various shops, supermarkets, factories, commercial buildings 2.Can also be placed in the courtyard, villa, private garden 3.Can be placed in squares, large-scale concerts, sports, exhibitions and other venues decorated FAQ Q1.Does your products have any certificates? Yes,our products have passed CE.RoHs,FCC.BSCI,REACH,CPSIA.Cal prop65 and so on. Q2.What is the warranty? The warranty is one year,under non-human damages. Q3.If the leds don't work,may I change them? Yes,you can change the leds by yourself. You can buy some replacements when you order.Buy Hollow Cube website:http://www.ledfurnituremanufacturer.com/led-cube/hollow-cube/