Professional Custom Lamp Holder Accessories Manufacturer

In some fluorescent light fixture designs such as the recessed models, a compact fluorescent lamp assembly may be too large to screw entirely into the socket through the hole provided in the fixture reflector, so the lamp can't receive electrical power. If the lamp doesn't feel like it is completely in the socket but can't be inserted further into the fixture, some other type of lamp may have to be used in this fixture.
Fluorescent lights are far more complex in design than incandescent light bulbs, and more efficient. An incandescent light bulb generates very little light relative to the amount of heat it generates, wasting much energy. Fluorescent bulbs waste very little energy and generally last up to six times longer than incandescent bulbs. They are tubular in design, with capped ends that feature two external pins each. The inside of the glass tube is powder-coated with phosphorous, and a small drop of mercury is also placed inside the bulb, which is filled with argon gas. An electrode at either end connects to electrical circuits.
There are two other possibilities besides the need for a new tube: loose connections in the wiring, or a faulty ballast. If a tube blinks on and off instead of flickering, chances are the former is the cause. If the light hums or produces other noises, the latter is the culprit.

Alternatively, hardware stores sell a lamp socket "extender", a device roughly two inches in length and it consists of a lamp socket and a lamp screw base. This is inserted into the existing socket, then the lamp is inserted into the extender. This gets the lamp assembly further away from the base of the fixture, but it may also make the lamp extend out of the fixture.
One prime suspect when maladies develop is the starter, a device that briefly accumulates current when the light switch is turned on, and then releases it (accounting for the momentary delay some fluorescent tubes exhibit when igniting). The other is the ballast, a transformer. At one time all fluorescent lights had starters that were separate from the ballast. Many still do; however, recently developed rapid-start fluorescent lights incorporate the two components into the ballast.