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 SLT 30562 SLI Lighting 48in Fluorescent Tube Bulb 40 Watts $46.99 Time Remaining: 12d 17h 45m Buy It Now for only: $46.99 |
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 NEW SLI Lighting Terra Lux 700 F32T8 Fluorescent Tube $65.99 Time Remaining: 7d 3h 30m Buy It Now for only: $65.99 |
 GEL 23485 GE Lighting 48in Cool White Watt Miser T12 GE Fluorescent Tube $53.99 Time Remaining: 18d 21h 10m Buy It Now for only: $53.99 |
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 SPD SUPPLY065 Prepaid Recycling Container Kit for 48in Fluorescent Tubes $116.99 Time Remaining: 15d 16h 59m Buy It Now for only: $116.99 |
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Fluorescent Tube
Energy saving with LED fluorescent tubes
There are millions of general service fluorescent tubes in the market place today, until recently these were considered the most energy efficient lighting solution available. The downside to this for of lighting is that each tube contains a small amount of mercury vapour, a toxic heavy metal. This can provide not just a health risk when the tubes are broken, but can also accumulate in landfills before entering the water table or causing further pollution.
Fluorescent lamps use electricity to excite mercury vapour inside the glass tube and always require a ballast to regulate the flow of power through the lamp. A starter is in the circuit to heat the contact ends of the tube that ionizes the mercury vapour creating UV light. The inside of the tube is coated with a phosphor material that glows when exposed to the UV light produced by the mercury inside the fluorescent tube.
Recent developments in SMD (Surface Mount Diode) LED technology have now meant that LED based fluorescent tubes are now a reality. LEDs are a more efficient form of lighting product consisting of small chips of conductive material that release light when a current is applied to them. They contain no filaments and can produce up to 25 times more light per watt than conventional light bulbs.
LEDs require far less energy in their manufacture than fluorescent tubes, and only 3% of the energy they will consume over their life expectancy is consumed in their manufacture, and they are also produced from non toxic materials. The tubes are made from polycarbonate, a material that is more robust and durable than glass, so accidents will not require special cleanup procedures.
While LED technology is more expensive than existing fluorescents at face value, they will last up to 10 times as long, while consuming 65% less energy. In most general purpose lighting applications they additional cost of the LED technology will more than pay for itself within the first 18 months.
The only drawback is the tighter beam angle of the LEDs, while some tubes are manufactured from a polycarbonate light diffusing material, others have a narrow focus which may not be suitable for replacing existing tubes. Many fluorescent fixtures are designed with reflectors that help to distribute the light from the tubes evenly in their intended environment. This is a problem similar to what was faced when compact fluorescents began replacing incandescent light bulbs, this is a problem that will soon be overcome and allow faster adoption of this emerging lighting technology.
About the Author
Mike Brunt is a director of Specialized Lighting Concepts a New Zealand leader in LED lights and emerging lighting technologies.
Can a marijuana plant sprout and grow leaves under a 10watt fluorescent tube?
I just want to know if it would grow leaves so then i can transplant it under my 400watt hps light. And also when is it a good time to transplant it under a stronger light???
You'd be better off starting your seedling under a higher wattage CFL (Compact fluorescent light). Generally, HPS is used for flowering, but with such limited fluoro light in the beginning, I'd run your seedling under HPS (18 hours on, 6 hours off) from the time it sprouts its second set of true leaves. Be sure to keep the light well above the seedling as HPS light is hot and can easily burn your fragile baby. Once the plant is 1/3 to 1/2 the size you eventually want it to be, flip the timing of the on off cycle to 12/12 to induce flowering. The plant will continue to grow to 2 to 3 times it's height as it begins to flower.
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