If you do not get the package, please contact LED Boutiques, we will help you solve the problem. Because the uncertainty of parcel delivery of post office, LED Boutiques does not promise any delivery time shorter than the protection time. Promised delivery time is the protection time which the buyer can see on the order page after the goods delivery by LED Boutiques (usually 60 days, Russia and Brazil may be 90 days or 120 days). The expected delivery time provided Aliexpress for all countries is 15-25 days (delivery time for 80% of the goods is in this range) 3. Buyers should know the difference between expected delivery time provided by Aliexpress and delivery time promised by LED Boutiques 2. China post office delivery time controversy: 1. Buyers must read the following terms of compensation. We do not like disputes without any communications first. Use the programmable controller,Raspberry Pi Pixel matrix Display Arduino DIY led strip, T-1000S controller All the packages sent out from LED Boutiques store have a tracking number, no matter how much it cost. (1) working voltage: DC 5V (2) LED Source: SMD 5050 RGB (3) LED Chip: Epistar (4) LED QTY: 30/60/144 LED / M (5) IC QTY: 30/60/144 M (6) Power: 9/18/43.2W M (7) Grey scale: 256 / Color (8) Cutability: 1 led / cutting (Built in 2811ic, 1 ic control 1 led) (9) Beam Angle: 120 ° (10)Color Mode:133 Pattern & 100 Speeds (11) IP Grade: ip30 non -waterproof / ip67 waterproof (12)Dimension: 10 x 2.4mm (13)Packaging: ws2812B rgb strip + 3 pin connector (14)Warranty: 2 years