Sony VPL-FHZ55 Technical Background page 12

A wide range of operating modes gives you tremendous opportunities to save
power.
Worry free
Conventional projector lamps can fail, undermining your productivity and embarrassing you at
high-profile events. Sony's True Laser light engine sustains high productivity and drastically
minimises downtime. Sony's blue laser light source is actually an array of multiple redundant
lasers. This means that the failure of any individual laser is not a show-stopper.
You can present with greater confidence because Sony uses an array of
minuscule lasers.
Sony VPL-FHZ55 Page 12