Frequently Asked Questions


Q: Why is it so important to turn my Wi-Fi off at night?

A: Did you know that our brains can recognise a pulsed Wi-Fi signal while we are asleep? Or that in some countries around the world Wi-Fi has been banned in childcare centres out of concern of over-exposure to childrens’ developing brains?

Switching your Wi-Fi off at night helps you take control of Wi-Fi exposure in your home, in particular at night when your brain deserves a substantial period of uninterrupted sleep, or to protect your children from any potential long-term impacts.

Read our full article on the importance of turning Wi-Fi off at night here.

Q: What is blue light and why does it matter?

A: Blue light is all around us. Natural blue light from the sun is essential for good health. It is known to boost alertness, help with memory and cognitive function as well as elevate your mood.

Blue light from devices and monitors, however, is unnatural and exposure to it, over time, can contribute to eye strain and cause concentration difficulties.

Exposure to blue light later in the afternoon or at night can also mess with your natural sleep/wake cycle - known as your circadian rhythm. So the more blue light you are exposed to, at the time of the day that your body is not built to process blue light, can confuse your natural cycle and make getting to sleep, or having a full, uninterrupted sleep, more difficult.

Read our full article on blue light here.


Q: Can't I just turn my Wi-Fi router off at the plug in the wall?

A: Of course you can! It’s inconvenient, though, especially if you ever use your device/s in bed. You’ll end up too tired (speaking from experience!) or you will simply forget. Having a remote sitting on your bedside table, or a timer set to a specific time, ensures you get the job done. Also, getting up close and personal with your router every day is not great for your health.


Q: How is this remote switch any different from other remote switches on the market?

A: Firstly, it isn't easy finding a radio frequency remote switch these days. They have mostly been phased out in favor of Wi-Fi remote switches which, if you are seeking to limit your use of Wi-Fi, are not fit for purpose. Secondly, many remote switches don't have an additional manual on/off button on the plug itself. TDT's remote plug has a manual on/off button, making it easy to switch the Wi-Fi on or off in case the remote isn't nearby.


Q: There are cheaper Timers on the market - why pay more for this one?

A: The timers on the market just aren't fit for purpose. They have tiny digital screens where it's difficult to see the times and the function. Also, since Wi-Fi usage in our homes is often a pretty fluid process, being able to easily switch between your pre-programmed times, and being able to override to manual on/off, is vital. The large digital screen and overriding function on TDT’s timer are a must have!


Q: How do I know your children’s blue light filtering glasses will fit my child’s face?

A: The frame size of TDT’s children’s glasses is: 47-18-135. This means the lens diameter is 47mm, the nose bridge width (ie the gap size between the two lenses) is 18mm, and the entire length from end to end of the frames, measured at the temple, is 135mm.

TDT’s children’s glasses can be worn by children aged 4 to 14yrs. Obviously they will look slightly oversized on most 4yr olds. Likewise, depending on the size of face/head, they may fit slightly smaller on children 12yrs and over.