Laser projectors

These devices, which use high-quality lasers instead of lamps, project clear and colourful images.

Pros and cons:

+ Fast switch-on and switch-off

+ Twice as much brightness and better colour shades

+ Low consumption costs

+ No lamp replacement, thus environmentally friendly and low maintenance

+ Longer service life: at least 20,000 hours (this is up to two to three times longer than a projector lamp)

- Slightly higher purchase price, but profitable in the long term

- Slightly lower light output (seemed to me to be a little more formal than the earlier 'spoken': 'a lot less')