Strobes produce a bright light in a similar way to on-camera flash. They differ in that they’re brighter, they produce extremely short bursts of light, and they recharge quickly. Strobes, usually referred to as monolights, are available in powers ranging from 100 watts up to 1,000 watts. The power determines the distance over which you can use the unit, although many models have an adjustable output to reduce light intensity for close-ups.
Light sources include LED, halogen, and xenon flash lamps. You may trigger strobes by cable or by using a remote trigger. Many models have TTL exposure capabilities.