Meet Michael, the Cossack designer.

Here is Michael Richards, wearing his wonderful Cossack light hat.

Michael has been putting together an instruction for a LED-Leg. A few months ago he managed to upset one of his legs by straining his Achilles’ tendon.

He decided to put his red-light making skills into action to fast-track the recovery of his tendon.

And it worked.

Pulsed vs continuous light

I’ve had a number of queries about pulsed light.

There is good evidence now that pulsed light is more effective than continuous light. Maybe the cell batteries, the mitochondria like to have a little pause in between receiving a pulse of light energy and directing it into the cell as metabolic energy. It makes sense.

The other reason is that by pulsing the light, the light dose is then the average of the pulse-ON and pulse-OFF. This means you can push the power in the pulse-ON, knowing that it will be offset by the no-pulse time.

I know of several people who have gone on to pulse their LED-based Elizas and Cossacks, and I have nothing but total admiration and envy for them, but there is no way I could do that.

The reasons that I have not previously mentioned the value of pulsed light is because;

1. I couldn’t give instructions to achieve it

2. I didn’t want anyone to devalue the effectiveness of continuous red/near infrared light.

Daily unpulsed red light better than no red light.

If you are using your Eliza or Cossack with continuous red/infrared light, do not be tempted to chuck it in the corner and refuse to use it because it won’t pulse. It is still doing its very best for you, and that is a lot better than nothing.

Eliza vs Cossack

I had a really good question from a blog reader today about why I recommend the Cossack design.

Look at the instructions for DIY light hat devices, and the photos of both devices, and you’ll see that Eliza is all enclosed, with a few holes at the top, and is lined with reflective foil, whereas Cossack is very open, lots of ventilation, no reflective foil. Continue reading “Eliza vs Cossack”

Cossack photos

Some wonderful photos of a recent Cossack construction. The creator put the LED strips on the inside of the Cossack, and this required the use of lots and lots of cable ties.

Fortunately, the creator didn’t cut the ends of the cable ties, making for a very fine porcupine or echidna.

Sincere thanks for permission to post these photos.

Cutting to size:


The perfect Cossack frame:

The LED strip was installed inside (outside is probably easier) and held with cable ties:

It is fabulous!