LED desk lamps

 

— a block of one or more built-in (non-removable) LEDs. By themselves, LEDs are the most advanced modern light source: they give excellent brightness at very low power consumption, they can be made in colour and even colour change, and their only key disadvantage is their relatively high cost (which can be paid off by saving electricity). However, non-removable LEDs specifically have one more drawback compared to replaceable bulbs: if the LED block fails, you need to carry the lamp for repair, or even change it entirely. On the other hand, such blocks can be made very tiny without much loss of brightness, which allows them to be used to create very compact and elegant lamps.