What are those tube lights called?

Question

the ones which detect prescence of a human being.

so if u go in the room, they automatically

turn on and when u leave that room ,they turn off again .

Answer 1

It's a motion sensor linked to a light, which can be any type.

.

Answer 2

I am personaly only aware of one such system, which activates the lights in the room when motion is detected, theses types function simply on a motion detector and a small processor in the more advanced models. The light it self can be iether halogen, flourecent, or incandecent.

Answer 3

these lights are interfaced with the motion sensors  if u go in they ll switched on.... and another principle is that the increrase in the heat in the room... ie the latent heat of the body .... if anybody gets inside the room the room temperature gets increase by some amount (

Answer 4

these are motion sensitive lights , these tube lights uses a infrared beam which is invisible at the door , the light is off till the infrared beams path is unobstructed , but as soon as someone enter the room , the ray path get blocked and tublight is triggered .........

Answer 5

These are motion activated systems

Answer 6

Dear ma,

Thank you, am also fine like you then ma for you said we can use any light may some small tubes or some fancy lights but one thing is there that the light is switch on & off is sensed by sensor depend upon the used area we can use infrared sensors also.