Monday, June 27, 2016

Replace fluorescent tubelight with LED tubelight


How to replace a fluorescent tube with an ETL approved LED tube in an inductive-ballast-based fixture

Basically, a LED tubelight  is designed to replace a fluorescent tube with a similar size and shape. But in theory, they work in quite different ways. A fluorescent tube must be driven by an inductive ballast or an electronic ballast, while a LED tube do not need these kinds of ballasts. It means that they do not have a same wiring. According to the prototype of a LED tube, it has to rewire the fixture when we want to replace a fluorescent tube with a LED tube tube light. That will be a large cost on it. Fortunately, a LED tube light is able to compatible with an inductive ballast, despite it do not need a ballast.

According to the safety requirement, most of ETL approved LED tubes set their input at the two pins of one end-cap, like our LED tubelight oval do. With a LED shorter, these ETL approved LED tubes can be able to replace fluorescent tubes in inductive-ballast-based fixtures without rewiring.

In this section, we introduce instructions to replace a fluorescent tube with an ETL approved LED tube light in an inductive-ballast-based fixture.

Warning

The replacement must be done by a professional electrician.Risk of fire - Users must determine wether the LED tube light is suitable for the fixture or not. Any mis-uses may cause abnormal risk, like a fire hazard.Risk of electric shock - Be care to risk of electric shock during replacement, because the input rating of LED tube lights are usually 100~240Vac. Keep the power off when you need to touch any parts of the LED tube light.

Tools you may need

Safety gogglesSafety glovesScrewdrivers

Preparation

Read the installation guide before replacement.Put on safety goggles and gloves for protection purpose.Make sure the fluorescent tube you are going to replace works in an inductive-ballast-based fixture. A simple method to identify the type of ballast is to check if there is a starter in the wiring of the fixture. If there is a starter, it probably be an inductive-ballast-based fixture. Otherwise, it probably be an electronic-ballast-based one, in that case, do not follow the instructions below. The following wiring diagram helps to understand how a fluorescent tube connects to input power in a fixture.

Instructions

1Switch off power and make sure there is no risk of electric shock.
2Remove applicable diffuser or cover and fluorescent tube from the fixture.

3Replace the starter with the affiliated LED shorter.

4Install the LED tube light, and the correct wiring diagram in the fixture will be:

5Switch on power to ensure the success of replacement.

6If the LED tube light does not work, switch off power and inspect the wiring of the fixture carefully. Call for technical support if necessary.

10 Signs You May Have Cancer

10 Signs You May Have Cancer



As a rule, cancer is hard to detect in its early stages. The dreaded C-word is also difficult to diagnose in the beginning. In fact, this life-threatening disease is usually only diagnosed when it reaches incurable stages. However, if you pay attention to your body, it’s now easier than ever to identify this lethal disease before it’s too late.
Listed here are the 10 most common side effects of cancer in its early stages. If you or someone you love are experiencing one or more of them, it may be worth having the area checked out.

A Lump Beneath Your Skin

You can easily detect lumps regularly by examining your body. Performing self-exams of breasts, testicles, armpits, throat, abdomen, and other soft tissues is a great way to distinguish any unusual changes in your body. Get comfortable with touching these areas on a regular basis to detect early signs of cancer before lumps develop into larger tumors.

Changes In Bowel Movements

Anything that seems different from your usual stool – blood or pain during defecation, fairer or darker stool color, mucus, constipation, or diarrhea – that lasts for more than two days should be a reason to worry. These signs are often the first symptoms of colorectal cancer.

Loss of Appetite or Trouble Swallowing

Any disorder or discomfort that significantly disrupts your digestive process is a cause for concern.

White Spots on Your Tongue or in Your Mouth

Whitish spots or bumps in your mouth and throat require immediate medical attention.

Bleeding

Unexplained bleeding that cannot be accounted for other than a woman’s menstrual cycle should be immediately examined. Blood from your nipples, the uterus, or any other unusual bodily excretions should be checked by the doctor.

Coughing

A cancer may be growing inside your lungs, esophagus, throat and even stomach if you are experiencing persistent coughing that is not a result of flu, cold, or any other respiratory illness.

Wounds that Don’t Heal

If you have a minor cut or another small injury that is taking a long time to heal, it is a sign that a tumor may be growing in your body. Your immune system stops functioning properly when it’s trying to fight off cancer. You should visit a doctor immediately!

Voice Changes

Cancer of the larynx can cause your voice to change pitch and tone.

Changes in Urination

Changes in the strength of your urine flow, color, smell, presence of foam, or especially noticeable blood should be a reason for concern.

Itchy Skin

Your immune system treats cancer like bacteria. Your white blood cells get mobilized attempting to destroy it. This is why blood flow increases in the area of a cancerous growth. Such areas may feel warm, appear red, change color, feel tight and itchy