World's first real Free Energy Flashlight - no shaking - no batteries! No Solar

[skywatcher]

Skywatcher, could you measure the diameter of the light cone at this distance? Is there any background illumination in the room (variable or constant)?

At the moment it's not possible because i have already started my tests.
From my memory i would estimate it had about 10 cm diameter. It's quite narrow.

About my test setup:
I'm using this luxmeter: https://www.conrad.de/de/voltcraft-bl-10-l-lux-meter-beleuchtungsmessgeraet-helligkeitsmesser-0-40000-lx-kalibriert-nach-werksstandard-123206.html
I have attached it with tape directly on the front window of the ELFE, between the window and the meter i had to put 2 sheets of white plastic because otherwise the meter would be overloaded (> 40 kLux).
With the additional attenuation, i got an initial value of 26000 Lux, after some minutes it climbed up to 29000 Lux, i think this may be due to increasing temperature of the LED.
After 1 hour it's still 28700 Lux (resolution of the meter is 3.5 digits, so it's 100 Lux at these high light levels).
I'm taking readings every 10 min and i will post the results here on the forum after each testrun.

[skywatcher]

1st testrun:

16.02.16	18:30:00	26000
	18:40:00	28800
	18:50:00	28700
	19:00:00	29000
	19:10:00	28900
	19:20:00	28800
	19:30:00	28700
	19:40:00	28600
	19:50:00	28200
	20:00:00	27500
	20:10:00	26200
	20:20:00	24200
	20:30:00	20000
	20:40:00	11400

At 20:40 i switched it off because light intensity was falling rapidly.

[txt]

At 20:40 i switched it off because light intensity was falling rapidly.

That's was surprisingly short, assuming it was "charging" all the time since the assembly, during the shipping, till you made your setup and started to test.

Thanks for sharing!

[skywatcher]

That's was surprisingly short, assuming it was "charging" all the time since the assembly, during the shipping, till you made your setup and started to test.

Thanks for sharing!

I had it on for max. 10 min before testing... so we might add this time.

If we assume the initial power consumption to be 3W the total amount of energy would be 5...6 Wh, which i would say would be a realistic value for 3 pieces of average quality AA-sized accus.

The interesting thing now is: will it recharge ?  Normal accus don't recharge, at least not to their full initial capacity.

[conradelektro]

The interesting thing now is: will it recharge ?  Normal accus don't recharge, at least not to their full initial capacity.

If I take the promises of the "inventors" for granted, I have to say that you should not have switched it on longer than 3 hours. They guarantee only 3 hours of light for one day of self charging.

And then they maintain that you have to let it self charge for up to 14 days if you left it on for 12 hours straight.

One could claim, that a 4 hour run needs more than one day of self charging, because it exceeds the 3 hours recommended per day.

My point: the testers should first try several times the 3 hours of light per day. And later they should go for a long run, which would need many days of self charging.

Not that I believe what the "inventors" say, but the test should take their specifications seriously. Otherwise the "inventors" have a good argument, that the tester violated the specification.

My proposed test procedure:

- after receiving the wonder flash light, let's say we start the test a 19:00: let it shine for three hours (till 22:00)
- at 19:00 the next day: let it shine for three hours (till 22:00)
- at 19:00 the next day: let it shine for three hours (till 22:00)
- do that for let's say 7 days

- then let it shine from 19:00 till 07:00 (a 12 hour run)
- try a few seconds of light after 7 days, see if it has recovered, if it has, repeat a few days with a three hour run
- if it has not recovered after 14 days, well, the test is over, or if it has recovered, repeat a few days with a three hour run

So, it might take at least three weeks to prove the "inventors" wrong playing their game. Of course, if the 3 hour runs are not possible for 7 days, the test is over sooner. It would be pointless to do a 12 hour run if it can not do 3 hours per day.

May be what I say sounds complicated, but one should take the specification seriously, otherwise the test is not valid.

Greetings, Conrad