Streamlight flashlights can range in price from $3 for a mini key chain model (http://www.midwayusa.com/viewproduct/?productnumber=695826) to nearly $200 for a top of the line model (http://www.cabelas.com/flashlights-streamlight-strion-rechargeable-led-flashlights.shtml). Prices in the mid range are from $50 to $70
Flashlights have light energy if they are on. The energy is stored as chemical energy in the battery when it is off.
A thin beam of light is a concentrated stream of light that travels in a straight line and has a narrow width. It is often produced by sources such as flashlights, lasers, or spotlights, and is used for illuminating specific areas or objects with precision.
Flashlights can provide mobile light for outdoor, emergency, search and rescue.
They can.
from flashlights and light bulbs
Flashlights convert electric energy to light energy and heat energy.
chemical to light :)
Flashlights and candles produce white light, which is a mixture of different colors. The light emitted by them is a combination of visible wavelengths within the electromagnetic spectrum.
If classified by light source, there are 3 types of flashlights; they are bulb, HID and LED.
A small, portable light source.
Flashlights exist so you can have a portable light source. You can use flashlights where there are no other types of lights. You can use them in emergencies, and you can use them in places where other types of lights would be awkward or hazardous.
Vector flashlights are among the brightest flashlights in the world. They utilize a Krypton beam and long-lived LED lights. They are considered useful in emergency situations when a very bright light is needed.