If every American house replaced just one gentle bulb with one that has earned the VITALITY STAR, we might save enough power to mild 2 million houses for a yr, save about $460 million in annual power prices, and prevent 6 billion pounds of greenhouse gasoline emissions per year, equal to the emissions from about 550,000 cars.
Many arrangements of electrical contacts are used. Massive lamps might have a screw base (a number of contacts on the tip, one on the shell) or a bayonet base (a number of contacts on the bottom, shell used as a contact or used solely as a mechanical assist). Some tubular lamps have an electrical contact at either end. Miniature lamps could have a wedge base and wire contacts, and some automotive and particular objective lamps have screw terminals for connection to wires. Contacts in the lamp socket permit the electric present to cross by way of the bottom to the filament. Energy rankings for incandescent gentle bulbs vary from about 0.1 watt to about 10,000 watts.
It will get worse. The insides of those tubes are coated with phosphorus powder-a dangerus chemical to inhale, or get into your system. If a fluorescent tube …Choosing The Right Light Bulbs For Your Reading Lamp Read More