Only 10% of the light produced inside an LCD panel ever reaches a viewer's eyes.
From the newscientist.com
Then I go into the scene with a battery-powered light panel and paint with light.
From the lens.blogs.nytimes.com
Whenever the presence of a potentially combustible gas closes the circuit between a pair of tiny electrodes, a yellow panel light flashes.
From the time.com
The driver turns on the ignition, then waits for an instrument-panel light to shine, telling him that he can step on the accelerator to start the engine.
From the time.com
The light source in panel d is green laser, whereas the light source in panel e is visible light.
From the nature.com
There will be a solar panel for light, but no electricity or water.
From the independent.co.uk
The TIME panel shed some light on the root causes of corporate dithering.
From the business.time.com
These reflected pulses control a small panel of light-emitting diodes, in front of the wearer's eyes.
From the newscientist.com
Essentially it's a sealed plastic bag with a solar panel and a light.