The MR16 Tri-Colour 9 in 1 LED Globes are uniquely versatile with the ability to control both the colour of the light emitted and the intensity (wattage output) of the globe. I had a requirement for two ceiling downlights above a corner desk with one of the downlights immediately above a computer monitor. These globes were the only ones that gave me a uniform light colour, with a good light spread (more than 60º beam), and allowed me to also reduce the intensity of the light immediately above the computer monitor. From an eyestrain point of view, these globes are well worth the price tag.