Rechargeable Light bulbs

[HR Solutions]

I am urgently looking for these - they come on automatically when load shedding happens. Can anyone help ?
The do not work with a remote - I have a few of those and they are crap !

[adrianh]

That is really cool, I need some of those.

[Justloadit]

Call Flash on 021 7885532 in Muizenberg, they may help

[ians]

I would be very concerned and stay very far away from it, if it works with the earth of the switch...eeeeeish.

[JLK]

I would be very concerned and stay very far away from it, if it works with the earth of the switch...eeeeeish.

I really do not know how it works, we were just guessing it works on the earth line. Because we do not know how the bulb picks up the power is off - the eart line was just a guess. We switched our power off on the mains at the board and the bulb would not go on but as soon as we experienced load shedding it would come on. strange I know and still cant really explain to you how it knows

[Justloadit]

We switched our power off on the mains at the board and the bulb would not go on but as soon as we experienced load shedding it would come on. strange I know and still cant really explain to you how it knows

Yep just as I guessed. There is some electronics inside the globe, which is powered by the rechargeable battery. This electronic circuit measures the line impedance when the power is off. When you switch off at the wall switch, the LN line will show a very high impedance as there is very few loads on the same circuit, however when there is a power failure, the line impedance is very low because it probably measures the transformer impedance, so the electronics then switches the light on.

[AndyD]

Yep just as I guessed. There is some electronics inside the globe, which is powered by the rechargeable battery. This electronic circuit measures the line impedance when the power is off. When you switch off at the wall switch, the LN line will show a very high impedance as there is very few loads on the same circuit, however when there is a power failure, the line impedance is very low because it probably measures the transformer impedance, so the electronics then switches the light on.

Hmm, call me a cynic but I'm not convinced . I guess it's possible in theory but in practice it would need to be constantly injecting a test signal into the supply and it would need considerable intelligence built into it. There's a couple of other issues as well such as during a power outage it would likely only 'see' the other loads connected to the installation(s) rather than the secondary side of the supply transformer. The impedance of the other lamps, transformers, ballasts, drivers or PSU's on the same switch circuit would also be an issue because this impedance would remain regardless of the circuit being switched on or off. Also if there was more than one of these things on a supply transformer they'd likely interfere with each other unless they all use a unique test signal.

I'm just thinking outloud here and I'll be the first to say that anything's possible so I'd be very interested if someone would purchase one and promptly reverse engineer it to satisfy my curiosity and let me know how it works

[HR Solutions]

Thank u - I will do that

[ians]

I know why I am not rich, because i dont rape the gulible public

[HR Solutions]

I know why I am not rich, because i dont rape the gulible public

it works ians ... I've see them .....