Since floor lamps have lot of variety in terms of shapes, sizes and the type of bulb used, to find out what type of floor lamp gives of the most light we need to consider these factors.
Bulb
There are different types of bulbs that can be used in the floor lamps to provide light, for example LED bulbs or incadecent bulbs. LED bulb very good energy efficient option of lighting that offer right light that can be good for task lighting or ambient lighting. On the other hand, incadecent bulbs are more suited for rooms that require warm and soft light. So depending upon the requirements of your room and the task you would be performing in space, you can select the right kind of bulb for your floor lamp.
Lampshade
As the bulb of the floor lamp is surrounded by lampshade the amount of light emitted by the bulb also depends upon the material of lamp shade you use. If light colour shade is used it will allow most of the light to spread in the space. But if you use opaque or dark coloured shade for your floor lamp, it will not allow enough light to bright up a room. Moreover, compact and narrow lampshades also less light to pass as compared to wide and open shades.
Wattage
While selecting the type of bulb for your floor lamp you have to carefully consider the wattage of the bulbs. This unit reflects the amount of energy that is consumed by a bulb. If a bulb has a high voltage it means it will give more light and obviously consume more light. The wattage of incadesent bulb is higher compared to LEDs. Therefore, when you are selecting the bulb for your lamp to give most light, don't forget to balance the energy efficiency it offers and the wattage of the bulb. It will ensure that your lamp does not produce costly electric bills.
Lumens
Lumens of the bulb are also an important factor to consider. It is the amount of visible light that a bulb provides. If the lumens of the bulb are higher, it will give bright light and vice versa. So select the lumens of the bulb depending upon your requirements.

Which material and colour of the shades emit the most light?

The material and colour of the shades greatly contribute to the look of the lamp as well as the light it provides in the room. While selecting a lamp shade for your floor lamp, you have to choose a colour that carefully matches the interior design of your room to create a balanced look.
The type of lamp shade greatly depends upon the tasks or work you would be performing in the room. If the room you are designing is focused on some important task, such as a home office or poorly lit living room, you will require light tones such as white or off white colour lamp shades. For this purpose semi transparent or transparent shades are also wonderful because they give maximum light in the room so that you can be productive.
However, if the room you are designing is focused on relaxing activities or gatherings you can choose a lampshade that creates a warm and dim environment. For this purpose, opaque or dark toned shades are perfect. If the colours are matched with a thick fabric of the shade, it will give an even better look.

What style of lamp gives the most light?

Torchiere lamps
These lamps are most common type of lamps used when the target is true a light the entire home because of their unique features. They have a characteristic illumination that is glare free and also use LED technology to brighten the space no matter how big or small it is. These lamps are excellent option if you are looking for a lamp that gives most light. They are popular because the shades of these lamps are facing upwards which allow the light to strike the ceiling and bounce in the entire room. This feature makes it good for ambient lighting but not for task lighting. For task lighting, you can buy lamps with reflector attachments that reflect the light in a downward direction. You need to place them in an area where there is less traffic such as the corners of the room.
Arc floor lamps
These floor lamps also provide maximum light due to their unique design and height. Most of these lamps have wide lamp shades that are reflecting in the downward direction so they offer a lot of light in the room. They come with a feature to adjust their height so you can easily customize it according to the need of the room. Since it allows maximum light it is used as a primary or secondary source of light. Although it lights up the whole room it is still not glaring on the eyes.
Standard floor lamps
If you are using standard lamps you cannot go wrong with these aesthetic and traditional lamps because they are the brightest. They can be used for different purposes because they can throw light in various directions making them a universal choice for ambient lighting in your room. Even if you place them at the edge of the room they can still cast light in the entire room. Their attractive colour is also contributing factor to its ability to give a bright look to the room. They are well suited for task lighting such as working or reading. Most of the time, these lamps have enough height to throw light in the entire room. Downward facing lamp shade illuminates the space below and the open shades also throw light on the ceiling.
Tripod floor lamps
Tripod floor lamps are also very attractive modern lamps that can give maximum light in the room. They have wide and open lamp shades that can cast light in both upward and downward dorection. They have a good height that allows them to cast light in the entire room. Most of them have dimmers fitted that lets you control the brightness of the light.
Apart from the lamps mentioned above here are some of the other popular types of floor lamps to provide maximum light:
  • Halogen floor lamp
  • Adjustable gooseneck floor lamp
  • Tree floor lamps
  • Six-way floor lamps

How to choose the floor lamps that Give the Most Light

Here is how you can select a floor lamp that is well suited for your needs.
Space in room
First thing that you need to consider is to carefully inspect your room or space in which you need to place the floor lamp. Look at the size of the room. If your space is big enough it will require lamps that can throw light widely such as arc or torchiere lamps.
Color of walls
Another important feature of the room that we need to consider if the colour of the wall. If the room has light coloured wall or shining they can help with reflectivity of light and make the room brighter. If the room has dark walls you need to put a floor lamp that have lighter tone lamp shades and good hieght so that it can light up the room adequately.
Purpose of the lamp
The ultimate choice of a floor lamp that gives the light that you are looking for depends upon the task you need to perform in the room. If the purpose of the room that you are decorating is relaxation you need less lights but that should be warm and soft. However, if you need to be more productive in the room and would be working on tasks that require attention to detail you will require floor lamps that give a lot of light that is not glaring. Similarly, if you have to cast light on some decorative piece in the room to enhance its visual appeal, you will require different types of light.
Other factors such as the type of bulb, wattage, lumens and lamp shade type should also be considered while selecting the perfect floor lamp for your room.