LightingUniverse
Flush ceiling lights attach directly to the ceiling, with no gap. Semi-flush lights use a stem or other piece to create a gap between the light and the ceiling.
The biggest determination here is overall space. If you have 7 foot ceilings and a 6’5” member of your family, a semi-flush light will probably hang too low. If you have taller ceilings, semi-flush lights can fill in some extra space. For a slimmer profile, install a flush ceiling light.
Yes- very! For best results, you should select light bulbs that correspond to the circuit voltage in your electrical line or outlet. In the US, this is typically 120 volts, but voltage will be specifically stated in your product description. Using bulbs of a different voltage can negatively impact the longevity and efficiency of the light bulb.
While there is no specific rule for calculating the necessary amount of space for a room, there is a general rule to follow. First, measure the length and width of your room. Multiply these two numbers, then multiply by 1.5. This will give you the approximate amount of watts you need to provide enough general illumination for the room.
Most ceiling fixtures will fit into standard electrical outlet boxes and are fairly basic to install. If you have an electrical box in place already, you will be able to install your new light directly onto it. If not, you will probably need to hire a professional to install one for you.
First and foremost, be sure to turn off the electricity before you start removing or installing new lights. Connect the fixture to the fixture stud, found in the middle of the electrical box, or attach the fixture strap. Connect white wires to white wires, black to black and copper to copper. Insulate wires and make sure they are securely connected. Then attach the outer casing. Follow the specific directions supplied with your product or hire a professional to help if you have any doubts or questions.
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