5050 30LED is 5m long flexible strip with
5050SMD 150LED as source, 10/12mm white PCB (2Oz) in 12V, 10mm white PCB (2Oz) in 24V, 6 whites (2000-6500K) and colors of R/G/B/Y/A/O/P/PP options, from IP20 to IP68 rated with 3M or clips mounted easily
IP20: bare, max. light output and the best color consistency, indoor use
IP65: silicone dropped, ~5% less output and 3rd best color consistency, indoor use
IP67: silicone cased, ~3% less output and 2nd best color consistency, indoor use
IP68: silicone enclosed, ~7% less output and 4th best color consistency, underwater/outdoor use.
Silicone can be anti-UV, anti-fire, salt water resistant, extremely standing high and low temp.