Indoor lighting seems to be a promising usage for the LED based technology.
LEDs are semi-conductive devices, while the incandescent, fluorescent and high voltage gas-discharge lamps rely on bulbs or glass tubes that include filament or electrodes, that include gas and various types of coverings.
LEDs include a small chip, of 0,1mm, made of semi-conductive layers. The LED packages may include one or more chips installed on a thermo-conductive material and usually, encapsulated or including a lens. The resulted device is usually between 7-9 mm long and may generate 30-150 lumens. LEDs can be used individually or in networks. The LED devices can be installed on boards and included in a lighting fitting, an architectural structure or can even have the shape of a “light bulb”.
A few usages for your house, where the LEDs attributes are turned to advantages:
Lighting the kitchen worktop
Lighting small sized areas: store-room, closet, fridge, bar, balcony, halls
Lighting the fields and yards
Emphasising lighting (instead of lighting spots)
Lighting the alleys and external stairs
Areas with sensors
Refrigerated show-cases
The users have to pay attention to a few aspects to benefit from the best choice:
Ask for photometric tests performed in accordance with the international standards
Ask about the warranty period. 2-3 years is a reasonable period for the outdoor lighting fittings.
The protection index must be appropriate for the intended usage.
Inquire about the working temperature and its impact on the light efficiency and on the light flow depreciation.
Check whether the colour temperature is appropriate for the intended usage.
Check whether the light is not too bright, testing the product, preferably at the intended height, at night.
Assess the cost considering all aspects: consumed energy, maintenance cost, working checking costs, colour temperature
What you should check when buying a lamp for outdoor lighting
Outdoor lighting seems to be a promising usage for the LED based technology.
The users have to pay attention to a few aspects to benefit from the best choice:
Ask for photometric tests performed in accordance with the international standards
Ask about the warranty period. 2-3 years is a reasonable period for the outdoor lighting fittings.
The protection index must be appropriate for the intended usage.
Inquire about the working temperature and its impact on the light efficiency and on the light flow depreciation.
Check whether the colour temperature is appropriate for the intended usage.
Check whether the light is not too bright, testing the product, preferably at the intended height, at night.
Assess the cost considering all aspects: consumed energy, maintenance cost, working checking costs.
