Although our RGB LED Strips, powered by SMD5050 chips were popular, we noticed that they were not as efficient when they required warm, natural or cool whites to be mixed within colour scenarios using Red, Green and Blue channels. For this reason RGB+W LED strips had been introduced, which included a separate white chip next to each RGB LED. This provided a better way of creating a white colour mix but since the RGB and white chips being used were two different types of LED chip, the colour mixing was not quite so efficient; it was still better than without the white chip entirely, though. For this reason the RGBW 4 in 1 LED chip was produced and we now have available LED Strips that are actually perfect and very efficient for this purpose. Note that it is also much brighter than using individual chips, as every single chip has a brightness of approximately 20 lumens.
Also available is a waterproof version, as per image displayed here. Note that the waterproof version can be manufactured in different ways, with the cheapest option being they use "epoxy resin". Using this method though will result in the LED strip deteriorating and becoming yellowish within the first 2 to 3 months of operation. Also, using epoxy will cause the product to become very hard and lose its flexibility, gradually failing completely within 3 months. This is what happens when purchasing from manufacturers dealing in cheap LED Strips. For this reason we suggest only using proper resin, even if the cost is much higher.
Finally, there are several qualities of LED chips available on the market, but we would only suggest selecting chips of high efficiency and with an Ra (CRI value) of 80 or even 90 in cases where the purity of colour is of utmost importance. The highest efficiency LED chips available today for single colour LED strips is the SMD2835 series, which may reach up to 130Lm per watt.