LED Space: 1.5cm, 2cm, 2.5cm,3cm, 5cm, 10cm Power Injection suggestion: Warm Tips: Because of voltage drops, if LED quantity above 200-300LEDs, you can not light it up without power injection, so need to cut them to use. 1.5cm LED space strings: 66LED/meter, 1LED/pixels, suggest to add voltage at every 300 LEDs 2.5cm LED space strings: 40LED/meter, 1LED/pixels, suggest to add voltage at every 300 LEDs 5cm LED space strings: 20LED/meter, 1LED/pixels, suggest to add voltage at every 200 LEDs 10cm LED space strings: 10LED/meter, 1LED/pixels, suggest to add voltage at every 200 LEDs Angle: 360 degree. Life Time: more than 50000 hours. Working Tempreture: -20~50°. Waterproof level: IP65 Waterproof Warranty: 1 Year. Individually Addressable WS2811 RGBIC Chip:Dream full color Programmable LED String. Chasing Lighting, Rainbow ,Fire ,Meteor, rhythm, etc all kinds of scenes and special effects. Each LED can be cut off without damaging the rest strip. You can shorten, lengthen or bend it freely if you want.