Flashlight Types and Bulbs

Now, as productive forces developing, various flashlights comes to the market. Different type, different brands can make you feel difficult to choose a proper flashlight for yourself. If you have difficulty in choose a flashlight, here, this article may be helpful to you.

In fact, different types of flashlights are made for different uses. Generally speaking, flashlights' uses include working, camping, diving, exploration in cave, and home use, etc.. After you know what the flashlight is special made for, you can find the best fit flashlight for you.

Advices for choosing flashlights

1. For Household

A great part of flashlights are made for this uses. If you need a flashlight only for household, you do not need to pay a lot of money for a middle-or high end flashlight. flashlight that uses D-size alkaline batteries isenough. Since most time these flashlights are shelved in home, their weight is not a factor needs to mind.

2. For backpack

To the backpackers, flashlights are necessary. To such a user group, the flashlight must be light-weight and power-saving for they need to carry the flashlight all the time, and it may not be easy to buy batteries when they are outside. LED flashlight is the best choice. Such flashlights has power-conversion, providing light for long time but consuming less power than the household flashlight we talked above. Therefore, you do not have to prepare too many standby batteries.

3. For working use

In face, few types of flashlights are made for working use except magnet flashlight. Magnet flashlight can be fix anywhere there is metal parts. But if the work is simple and needs only one hand to complete, you can get a light-weight LED flashlight for such flashlight will not affect you when you work with the other hand. If the work needs two hands to handle, a headlight is no doubt the best choice. In fact, most daily work needs to complete with two hands. So, you'd better keep a headlamp at home.

 

Flashlight bulbs

There are several bulbs can be used as a flashlight light source now. They generally fall into three categories: the incandescent type, LED (light emitting diode) and fluorescent type.

Incandescent bulb filament glows when it is heated to near the melting point. When the electricity is sufficient, the bulb shines relatively strong light, when the electricity decreases, the filament gets cold and the light fades and become yellow, and completely out when the power is run out.

LED can directly convert chemical energy into light. LED has quite high powert-conversion in the use of low power. When the electricity is running out, LED keeps the brightness for a certain time but not get yellow.

Fluorescent bulbs glow by using the energy emitted by the filament to hit the fluorescent substance in the bulb to produce light. This kind of light is a soft arealight source, which cannot be used as a point light source.