Good point! The right-hand chart should be percentage of energy rather than watts.

Thanks for the feedback. As I stated, the source is Philips Lighting/Signify - one of the biggest lighting manufacturers in the world. Their Hue range is hugely popular and many people will be using their lights to decorate their homes for Christmas. I pondered making the title: "Relative energy cost of Philips Hue", but I thought "light colours" was more search-friendly.

How different would the results be for other brands of colour-changing RGB bulbs?

It's designed to look like a Christmas tree to be meaningful to people choosing a smart lighting theme for the Holidays. It's intended to be indicative and immediately understood by the average person scrolling through their social feed.

oh that’s interesting, but I think colour changing RGB LEDs are going to become, or already are more common than single colour bulbs.

For this data the “Difference achieved in wattage consumption on new A60 White and colour ambiance E27 1100 bulbs compared to 4000 K at 100% brightness. Actual savings will vary depending on product specifications and dimming level.”

Data source: https://www.signify.com/en-gb/our-company/news/press-releases/2022/20221122-personalised-philips-hue-lighting-helps-to-save-energy

Tool used: Apple Numbers

*the Philips Hue press release did not mention Warm White, so I made a guess as it is somewhere in between cool white (4000K) and yellow.

It's a pity this wasn't arranged more consistently to identify trends, i.e. title at the top followed by one column with sponsors grouped in sub-columns by sector, eg. alcohol & tobacco | confectionary & fast food | energy & automotive | electronics | cosmetic & other