Pink light bulbs are ideal for drawing attention to specific locations in your house or company. Most light bulbs, whether incandescent, LED, compact fluorescent, or halogen, are designated "soft white/warm white" (2,700-3,000 kelvins), "bright white/cool white" (3,500-4,100 kelvins), or "daylight" (3,500-4,100 kelvins). The color of most light bulbs is due to the presence of elements such as phosphorus or arsenic used to create heat and glow inside the tube. Warm colors like red, orange, and yellow are created by adding more of these elements, while blue and green lights are made with less phosphorus or arsenic. Lighting is the process of converting electrical energy into visible light. It is one of the most efficient ways we have found to produce light from electricity. In order for humans to see this light, it has to be transmitted through something else: glass, plastic, metal, etc. These objects will affect how much of the light is transmitted into the eye of the observer. For example, if there is too much light coming from an illumination source, it will be difficult to see anything under its glare; conversely, if the light is not strong enough, you won't be able to make out any details on objects near it. The color of illuminated objects depends on their ability to absorb light of different wavelengths. Colorless objects such as white paper or white walls will appear black when illuminated by red light, for example.