200
200
First it will glow very brightly, then burn out in a short period of time.
You generally need the same number of volts for a given amount of light (lumens), regardless of how many hours you use it. They typically measure the amount of energy used by a bulb in "watts", not volts, and you can find a wide range of wattage ratings from milliwatt LEDs to 1000-watt floodlights and on up.
A decibel is a measure of relative power, to compare one power level with another. 'dBm' means dB relative to 1 milliwatt and is a common unit of power in communications systms, and 0 dBm is the same thing as 1 milliwatt.
When a bulb is attached to a battery or a cell as scientists call it, the bulb glows. If you want a bulb to glow more and more brighter, it depends on how many batteries you attached to the bulb. If you attach a lot of batteries at the same time, the bulb might even explode or burn out. The wires that hold the interaction between a light bulb and the battery is electricity. The electricity flows through the wires and touches the bulb and that is how a light bulb glows.
An LED light bulb can last up to 25,000-50,000 hours, depending on the quality of the bulb and usage. This makes them much more durable and long-lasting compared to traditional incandescent or CFL bulbs.
Who doesn't love glow-in-the-dark Halloween costumes, stickers, or glow sticks? Many bugs glow in the dark, too. Unlike glow toys, these bugs make their own light. These bugs are bioluminescent (by-oh-lew-muh-NESS-ent). Chemicals in their bodies combine to make them shine. Although bioluminescent animals light up, they don't give off heat like a light bulb does. Fireflies are the most common glow-in-the-dark insects. They light up to communicate with each other as they look for a mate.
there are eight glow plugs.
The word glow has one syllable.
You'll need to be more specific as to what you mean by mW. That would technically be milliwatt which is a unit of power and cannot be converted from length.
There are 1000 milliwatts in a watt. There are 1000 watts in a kilowatt. Therefore, there are 1 million milliwatts in one kilowatt.
The glow of the burning factory could be seen for many miles. Fireflies use cold chemical luminescence to make themselves glow.