Qualm entered English in the 16th century, with meanings like doubt and uneasiness.. Usually a qualm comes from doubt about an action and a feeling that you are doing, or are about to do, something wrong. It isnt a bad feeling about another person's behavior but about your own.
Fluorescent lamps-These have the advantage of higher light efficiency with low heat. This type of lamp is the most widely used for supplemental light. It is available in a variety of colors but cool-white lamps are the most common.
Turning your existing lights and fixtures into energy-efficient LEDs is even easier done than said with LED bulbs! Here's how: First, determine what bulb type you're replacing. The most common type is the standard or medium base bulb, but we offer LED replacement bulbs for candle/candelabra bases, halogen and more.