Comparison Xiaomi Yeelight J1 vs Xiaomi Yeelight J1 Pro

The colour temperature of the light emitted by the lamp. It is indicated only for models with built-in LED (see "Light source"), since bulbs with different characteristics can be installed in the socket. In luminaires with colour temperature control(see "Features"), the minimum value is usually taken into account.

This parameter directly determines the hue of the visible colour. At the same time, its physical meaning is such that as the colour temperature rises, this shade becomes more “cold”, shifts from yellow to blue. Here are some examples of colour temperature, for clarity:

— 1500 – 2000 K — candle flame;
— 2800 K — 100 W incandescent lamp ( warm light);
— 4000 K — a fluorescent lamp of daylight white light(such light can already be perceived as cold);
— 5000 K — the light of the midday sun;
— 5500 K — a shade from white clouds at noon;
And so on, thickening to blue cold shades.

Note that the choice for this parameter depends not only on personal preferences and design considerations, but also on the general purpose of the lamp. So, a high colour temperature (from 5000 K) is considered optimal for reading, an average colour temperature (about 4000 – 5000 K) is comfortable for mathematical calculations, working with documents and other tasks that require concentration, and...soft warm light up to 4000 K is good for relaxing and creating atmosphere of comfort.