Arquitectura

Outside Parking Lot Lamps (advantages/disadvantages)
Parking lot lighting must provide the users: safety, and optimal visibility. Color rendering should be as close to daylight levels in order to showcase storefront decorations, outdoor displays, and landscaping features.
Gas-discharge lamps 
It is a type of laminar that is part of the family of artificial light sources that generate lightby sending an electrical discharge through an ionized gas or plasma. The fluorescent lamp is perhaps the best known gas-discharge lamp. Most of these lamps are filled with additional materials, like mercury, sodium, and/or metal halides. To work, the gas is ionized, and free electrons, accelerated by the electrical field in the tube, collide with gas and metal atoms. Some electrons circling aroundthe gas and metal atoms are excited by these collisions, bringing them to a higher energy state. When the electron falls back to its original state, it emits a photon, resulting in visible light or ultraviolet radiation. Ultraviolet radiation is converted to visible light by a fluorescent coating on the inside of the lamp's glass surface for some lamp types.
Common Gas-discharge lamps (advantages/disadvantages)
Low pressure discharge lamps
* Fluorescent lamps, the most common lamp in office lighting and many other applications, produces up to 100 lumens per watt
* Low pressure sodium lamps, the most efficient gas-discharge lamp type, producing up to 200 lumens per watt, but at the expense of very poor color rendering. The almost monochromatic yellow light is only acceptable forstreet lighting and similar applications.
High pressure discharge lamps
* Metal halide lamps. These lamps produce almost white light, and attain 100 lumen per watt light output. Applications include indoor lighting of high buildings, parking lots, shops, sport terrains.
* High pressure sodium lamps, producing up to 150 lumens per watt. These lamps produce a broader light spectrum thanthe low pressure sodium lamps. Also used for street lighting, and for artificial photoassimilation for growing plants
* High pressure mercury-vapor lamps. This lamp type is the oldest high pressure lamp type, being replaced in most applications by the metal halide lamp and the high pressure sodium lamp.
Advantages Long life, High light efficiency
Disadvantages Complicated to manufacture,Require electronics to provide the correct current flow through the gas

Fluorescent 26mm white | 36 WATTS | 3000LUMENS | 83(68)EFFICIENCY LU/W | 4500TEMPERATURECOLOR | 60 CRI | 20000 LIFESPAN(HOURS) |

metal halide lamps
Metal halide lamps emit a white color and provide good color rendering, and their rated lifespan continues to improve. Modern metal halide designs and manufacturingtechniques are helping to overcome concerns over color stability, variation, and long restrike times.
Advantages white color and provide good color rendering, and their rated lifespan continues to improve
Disadvantages has to overcome concerns over color stability, variation, and long restrike times.
METAL HALIDE | 250WATTS | 19000LUMENS | 76(69)EFFICIENCY LU/W | 4500TEMPERATURECOLOR | 65 CRI |10000LIFESPAN(HOURS) |
High pressure sodium metal halide lamps
They offer long life and high efficacy. The surrounding temperature doesn’t affect the lamp. It emits a golden white color and provides poor color rendering, which is a disadvantage. Some high pressure sodium lamps have dual arc tubes to provide a quick restrike capability and longer rated life.
High Pressure Sodium | 250 WATTS |27000LUMENS | 108(97)EFFICIENCY LU/W | 2500TEMPERATURECOLOR | 25 CRI | 24000LIFESPAN(HOURS) |
Advantages long life and high efficacy, temperature doesn’t affect the lamp, quick restrike capability,
Disadvantages poor color rendering,

Tungsten halogen and halogen infrared lamps
Tungsten need no warm-up and provides a quick sharp beam, ideal for some security applications. They can be an...