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Easy to disassemble. Only unscrewing the tail cap is required to replace the single rechargeable Lithium battery cell shown here - a very commonly available 18650 size. All segments are sealed with rubber o-rings to keep water out if riding in heavy rain. The rings at the base of the lamp head are heat sinks to minimize temperature built up from the very hot LED emitter.
Flashlight weight = 185 grams
Wenn das Blitzgerät auslöst, wird es hell.
There will be lots of lights when the flash unit is triggered.
Decided to take apart a solar powered dynamo flashlight to see whats inside.
Basically what it has is a cheap electric motor (connected to the battery along with some diodes, then a few gears which allow the hand crank to turn the motor and thus generate power.
The solar panel is soldered onto the same traces as the battery and has no diodes
The LED's are not regulated so the brightness will drop along with the voltage (which seems to top out at around 3.5V. There is also no charging circuit so it may be possible to overcharge the battery.
The solar panel does charge the battery but after using the hand crank to bring the battery to 3.4V, aiming a bright lamp at the solar panel yielded no additional voltage even after an hour. (bit it was able to charge the battery enough to give some light after running it down (so it seems that the solar panel no matter what, is not able to fully charge the battery (it would probably need a DC to DC boost module in order to charge the battery fully).
Overall the flashlight is of a decent brightness and can run for around 15-20 minutes before needing a recharge using the hand crank. (Or if you want, you can run it non stop at a low brightness level if you have a bright light source aimed at the solar panel (perfect for if you like using a flashlight in direct sunlight :) )
You just gotta view this one large!
This is the first in what I'm going to call my "flashlight spider" set. So named because the pictures are the result of me walking around at night with a flashlight, finding spiders, then using the light from the flashlight to see enough to get focus. It's not easy balancing a monopod and working a flashlight, but it is loads of fun!
For this shot, I used my Canon 300D with attached tamron 70-300mm 1:2 macro and the Nikon #5T achromat lens.
The property was the summer residence of the Royal Family of Bikaner built by Maharaja Ganga Singhji of Bikaner in 1893 and was later restored into a hotel in 1962.
I captured this shot by hanging a flashlight from the ceiling with a string, setting my camera on a tripod looking up. I set the camera to BULB, turned off the lights, started the flashlight swinging, and hit the shutter.
I also set my humidifier near the camera to see if I could get a cloud effect. I ended up getting a solar flare effect instead.
A size comparison of the Nitecore SRT7 Revenger tactical flashlight to a few other flashlights along with a AA and 18650 battery.
The texture of the LEDs looks like it would be delicious. Unfortunately, it doesn't taste as good as it looks.
A good friend and I have come up with a get rich idea and we want to call it a Flashlight (I wanted to call it a Matchlight but my buddy, the one with the brains of the operation, thought Flashlight sounded better) It would help people get to the Outhouse late at night and aslo find your Pisspumps (Boots for yous Mainlanders) so your feet won't get cold running outside. We've poured ever cent we could spare into making these ($10.95 at last count) and hope to get some international orders soon. I anyone is interested we will be taking orders and will be selling them for $10.95 plus RST (Rod's Sales Tax)
**Gift from a neighbour that I thought was the greatest thing and had to share with all my Flickr friends**
Wow. Finally i can say varta is my partner and sponsor. Im really really glad and proud because of this..... because of this opportunity i can get better tools, photos and ideas ;) on picture you can find three models of VARTA`s flashlights;
Rechargeable Lantern LED with 150 lumens
Work Light LED 435 with 190 lumens
Indestructible 3 Watt LED Lantern 4C with 150 or 50 lumens
really really really good stuff :)