Gravity Powered, Electricity-Free LED Lamp

By Street Glow
People are always looking for greener alternatives and, in my opinion, powering anything by the force of gravity is green.

And the Greener Gadgets Conference in New York agrees with me, as they had awarded this gadget a second place. Called the Gravia LED Lamp, it literally does run on the force of gravity by the use of a slowly falling mass that spins a rotor which , in turn, provides power.


The lamp which is made of acrylic lens and LED lights, was designed by Clay Moulton of Virginia as part of his Master's thesis. To power the lamp, the owner has to place the weight on top of the 4-feet acrylic column.

The moment it moves, the LED lights are turned on. Brightness output is 600-800 lumens or equivalent to a 40-watt incandescent light.


The lamp is expected to have a lifespan of 200 years (if it manages to stay in one piece that long) when used 8 hours per day everyday. You don't have to worry about it adapting a less-than-attractive look in the Future, as it actually improves over time, just like fine wine.

LED lights emit a harsh-looking bluish light by nature. After 10 to 15 years though, the acrylic becomes yellowish and helps give your lamp, a classy appearance.

Self amalgamating Tape:

Self Amalgamating Tape for join cables is a non adhesive, easy to use black tape which when stretched 

and wrapped around cables, electrical joints, hoses and pipes will amalgamate (unite) and self bond itself

in minute into a strong seamless rubbery waterproof layer.

Self amalgamating tape will follow the shape and seal irregular surfaces with ease, it will withstand temperatures

between -10 Celsius to +80Celsius, insulates, waterproofs, seals and corrosion proofs. It can also be

used as an emergency repair tape for sealing leaking hoses and pipes.

Such as Splicing Tape/Scotch Tape,Self Amalgamating Tape 3M,Rubber Splicing Tape 3M.

self amalgamating tape

self fusing tape

rubber splicing tape

EPR rubber tape

Marks for self amalgamating tape: 
Most people are familiar with using Adhesive Tape , self amalgamating is not adhesive and can feel strange to use at first. Once you have used this tape once you will find it a very easy tape to apply.

usage for self fusing tape

Please follow the instructions below.

1. Using the required amount of tape, peel away the backing from the top side of the tape and apply bottom side of tape (facing the core) onto the component.
2. Hold tape onto the component with thumb, start to wrap the tape round and round under tension as you unroll, ensure edges of tape overlap by 50% of the width.
3. To finish hold down the tape under the thumb and snap tape by stretching apart.
4. Push down with thumb for 10 second until the tape has set. Where tape may be subject to abrasion or exposure to weather an external covering with a high quality Pvc Tape is recommended.

subber splicing tape

scotch tape

DIFFERENT KINDS OF RELEASE FILM FOR SELF AMALGAMATING TAPE:


self amalgamating epr tape

3m scotch tape

Self Amalgamating Tape

Self Fusing Tape,Self Amalgamating Tape,Splicing Tape/Scotch Tape,Self Amalgamating Tape 3M,Rubber Splicing Tape 3M

Shijiazhuang Longgong Plastic Products Co., Ltd. , http://www.pvctapemanufacturer.com