What type of light in projection lantern?
Answers
Answered by
2
Projection lantern use mostly LED and laser type of light.Hope this helps you.
Answered by
3
In a projection lantern at least half the light from the lamp is headed in the wrong direction; where would you put a mirror and what type would you use, to return this light to the vicinity of the filament, this time headed in the right direction
Similar questions