Journal

A battery graphic with the 20 to 80 per cent band highlighted in red
Looking after the lithium battery in your device
Lithium batteries last longer if you treat them a certain way, and they must never go in household recycling. Practical care, storage, warning signs and how to dispose of one... Read more...
A grid of 66 days with the first 21 filled in red
How to build a fifteen-minute routine that actually sticks
Most devices bought for a routine end up in a drawer. Not because they are bad, but because the routine was never designed to survive an ordinary week. Here is... Read more...
A 30 degree beam spreading from a handheld device, wider and weaker with distance
Beam angle, distance and coverage: the geometry of a light device
Beam angle decides how much area you cover and how fast intensity falls off. The geometry is simple, it's rarely published, and it explains a lot about comparing devices. Read more...
The 18.5 Wh battery compared with the 100 Wh airline carry-on limit
Can you take a red light device on a plane?
Yes — in your carry-on, if the battery is under 100Wh. Here's how to check your device, why it can't go in checked luggage, and what to expect at security. Read more...
Price bars comparing a cheap import at 60 to 150 dollars, this device at 499, and a large panel from 2000
What you are actually paying for: red light device prices in Australia
Red light devices in Australia run from about $60 to well past $3,000, and the gap is not explained by the light. Here is what the money actually goes on.... Read more...
A week grid with three days marked, and a ten to thirty minute session dial
How often should you use a red light device?
Every red light device comes with a recommended session length and frequency, and most people ignore both — either using it once and forgetting, or using it twice a day... Read more...
A wall plug struck through in red, beside a ticked list of what is in the box — cable, goggles, travel case, manual
Why we don't include a wall charger
One thing people expect in the box isn't in ours, and it was a decision rather than an oversight. Here's the reasoning — and what's in there instead. Read more...
Black opaque red light goggles with an elastic cord — a pair comes in the box with every device
Do you need eye protection with a red light device?
The short answer is that eye protection matters more with these devices than most people assume, and that a pair of goggles now comes in the box with every device... Read more...
Outline of Australia including Tasmania, glowing red
What to look for when buying a red light device in Australia
Published measurements, a warranty you can actually claim on, and someone to call. A checklist for buying a red light device in Australia — including your rights if it fails. Read more...
A 244 gram handheld device drawn to scale beside a much larger wall panel
Handheld or panel? An honest comparison
Panels cover more area. Handhelds go in your bag and cost less. A straight comparison of coverage, output, price and practicality — including where handhelds lose. Read more...
A short red 660 nm wave above a longer dashed 850 nm near-infrared wave
660 nm and 850 nm: what the numbers on the box actually mean
Red light devices quote 660nm and 850nm. Here's what a nanometre measures, why one is visible and the other isn't, and what to check before you buy. Read more...
Chart showing irradiance falling from 58 to 40 to 25 mW/cm2 at 5, 10 and 15 cm
What irradiance actually means — and why almost nobody publishes it
Irradiance is the number that tells you how much light actually reaches your skin. Here's what mW/cm² means, why distance changes everything, and the four questions to ask any brand. Read more...