Strip forms
Plain RGB strips mix red, green and blue in different proportions to make many colours, with all parts of the strip showing the same colour at once. RGBW strips add a white channel, so the strip can also show true white, which plain RGB mixes only approximately, and which matters where the strip must also serve as ordinary lighting. Addressable strips allow different parts of the strip to show different colours at once, which matters for displays, patterns and chasing effects.
The form should fit the installation: plain RGB for uniform colour, RGBW where white light is also needed, addressable where parts must differ. A strip chosen without the colour behaviour in mind may show the wrong colours, or the right colours in the wrong places. The colour modes guide explains the behaviours in full.
Control and power, in general terms
A strip needs a controller: the device that sets its colours, its patterns, and its brightness. Controllers range from simple remotes to programmable units, and the controller must match the strip form: an addressable strip needs a controller that can address its parts, while a plain strip needs only a controller that sets a uniform colour. A controller that does not match the strip form cannot drive it, whatever its other qualities.
A strip also needs power suited to its length: longer strips need more power, and a power supply that is too small will dim the far end of the strip. Power planning belongs with the strip choice, not after it: the installation's length should be named in the inquiry, so the supplier can confirm a strip and power arrangement that serves it.
What to ask next
Name the installation, its length, and the colour behaviour it needs — uniform, white-capable, or addressable — the quantity you have in mind, and the market you sell into. Ask for the specification for the exact type, the quantity terms, the lead time, and the certificates for your market, by name, with documents attached. The bulk inquiry pages list these confirmations.
Before payment, confirm the minimum order quantity and lead time for your order. Certificates are available upon request.