Photosensor for LED light

[stubuzz]

Could anybody recommend a photosensor for a LED tube like the one below. It already has a motion detector built in but i would like it to start working automatically from dusk to dawn.

 

https://www.evelighting.com/product/53790/led-t8-motion-sensor-9-18w-daylight

 

 

[Crossy]

You mean you only want it to do its thing at night?

 

Any of the numerous photo switches should do the trick.

 

Like this one https://www.lazada.co.th/products/y-crown-street-photo-switch-220v-10a-i130778094-s138872566.html

 

 

 

 

[OneMoreFarang]

Maybe this is too extensive for what you want. But maybe not.

The guy knows what he talks about.

 

[KannikaP]

Or you could get, as I do in my bedroom, fit WiFi controlled bulbs and set up a schedule on your phone, eg on at 6pm off at 9.

[Daffy D]

Wouldn't a motion sensitive light have a built in photosensor already?

 

What's the point of having a light come on in daylight?

 

 

[Crossy]

14 minutes ago, Daffy D said:

Wouldn't a motion sensitive light have a built in photosensor already?

What's the point of having a light come on in daylight?

 

That would be my thought too, but ...

 

[stubuzz]

3 hours ago, Crossy said:

Any of the numerous photo switches should do the trick.

 This is from https://ledlightinginfo.com/do-led-lights-need-a-special-photocell

Standard photocells require a small current to operate during the daytime when the light is off. Because LEDs run at such a low voltage, this small current causes interference, flickering, and premature degradation. Therefore, LEDs require a different type of photocell than conventional bulbs.

 

22 minutes ago, Daffy D said:

Wouldn't a motion sensitive light have a built in photosensor already?

The one above has nothing about it in the literature. It is always on at 30% power and increases to full power when it senses motion.

 

Lamptan has a motion sensor bulb that only works in the dark, maybe i could use one of those and add another Lamtan dusk to dawn light.

 

 

 

 

 

Edited August 20, 2021 by stubuzz

[Crossy]

1 minute ago, stubuzz said:

Standard photocells require a small current to operate during the daytime when the light is off. Because LEDs run at such a low voltage, this small current causes interference, flickering, and premature degradation. Therefore, LEDs require a different type of photocell than conventional bulbs.

 

The 3-wire switches I showed draw zero (no, nothing, nada) through the load which is relay switched.

 

But you are correct, 2-wire switches can draw enough quiescent to cause "interesting" effects.

[stubuzz]

27 minutes ago, Crossy said:

The 3-wire switches I showed draw zero (no, nothing, nada) through the load which is relay switched.

Thank you.

I have just found this one. It claims to have an IP65 rating.