CREE is a company that manufactures LED (light emitting diodes). They are based in Durham, North Carolina.
Though CREE often gets mixed up with flashlights such as CREE LED flashlights, or CREE flashlight, the company themselves don’t manufacture any flashlight, they just make the light bulb you could say.
Compared with traditional flashlights, CREE LED bulbs are much more efficient and produce higher lumens. CREE LED flashlights also allow you to change the cast range of the lens such as zooming and focusing. Lastly, you have the option of choosing between different power modes, in addition with strobe effect.