For those confusing SMD3528 with SMD2835:
We have two different LED chips: SMD3528, which is on the lower end of brightness, while the newest generation of LED strip tape lighting is now powered by SMD2835. This offers higher brightness and an efficiency of up to 100 Lm/Watt.
If using waterproof protection (IP65 or similar) be sure that it is not made of Epoxy, as it will damage the chips within a very short period of time!
We have since introduced high-efficiency LED strips which have an efficiency of 160 Lm/Watt.
To find out more about these new strips, please see our recent article.