For blonde hair, or to add subtle highlights, mix 1/2 cup of strong chamomile tea, Â¼ cup fresh lemon juice, and Â¼ cup coconut oil in a blender until emulsified. Apply to hair and roots and cover with a shower cap. Sit in the sun, or use a hair dryer to keep the cap warm for 45 minutes to 75 minutes.
Ballasts limit the current through an electrical load. These are most often used when a load (such as an arc discharge) has its terminal voltage decline when current through the load increases.
Fluorescent lamps require a ballast to stabilize the current through the lamp, and to provide the initial striking voltage required to start the arc discharge. This increases the cost of fluorescent light fixtures, though often one ballast is shared between two or more lamps.