2011年12月31日星期六

Something About Lumens and White Light Bulbs

As we all know, Lumens are a very common way to describe how bright a light source is. You can find this info listed on most packages of fluorescent bulbs or when looking at projectors and their light bulbs. Lumens only tell us how bright something is to the human eye. As humans we can only see a small range of the light spectrum. Some colors appear brighter than others, which is why a yellow light looks brighter than a blue light.

The two graphs above graph above shows you which light is seen by the human eye and what light plants need to produce the best results in helping your plants grow. To clear it up a bit these charts just say that yellow and green light appears brighter then red and violet. Plants use photosynthesis to grow, so the greater the better. If you compare the two charts what your eye can see is almost opposite to what plants need to grow. As you can see from the charts the green light is the most visible to the human eye, but it is almost worthless to plants. Now on the other hand if you filter out this green light, you end up with a dark room and your plants will wither and die. Plants are green because of this green light; they reflect it.

This is why using lumens to measure the brightness of light doesn’t work. Plants would rather 10 lumens of LED light then 100 lumens of green or yellow light.

LED grow lights are revolutionizing the indoor growing arena! They consume less power by delivering ONLY the light your plants need, and produce much less heat. They are also mountable in any direction – you could line a cabinet with them if you so choose.

According to this phenomenon, In this post, China wholesale Bluelans.com highly recommends consumers E27 LED Human Sensor Lamp 110-240V White Light Bulb 3W and B22 220V 18 LED 5050 White Light Bulb Home. They are all very excellent and you deserve to own them. Just follow me to have a look, I do believe you will like them.

1. E27 LED Human Sensor Lamp 110-240V White Light Bulb 3W
flashlight ,led

This 100% brand new Human Sensor Lamp with E27 Base will turn on when the special infrared sensors feel infrared spectrum of body change, the lights will turn off automatically after people leave 60+-20 second. The voltage about this kind of E27 LED Human Sensor Lamp 110-240V White Light Bulb 3W is AC 110V – 240V. You will see the rated power is 3W as well as the trigger sounds is 52?dB. Yes, the lamp holder is E27. Forgive me for forgetting to tell you the size about it. Wow, the size is 10cm for the height of the lamp, 7cm for the diameter of lamp socket. There is also 1 x E27 LED Human Sensor Lamp 110-240V White Light Bulb 3W included. Do you want to buy one now?

2. B22 220V 18 LED 5050 White Light Bulb Home
flashlight,led
This 100% new and high quality B22 220V 18 LED 5050 White Light Bulb Home is a ultra-energy-efficient replacement with white LED emitting color. It is widely used as downlighting or accent lighting in shops, offices and the home. The power is 3w with 220V, There is also 1 x B22 220V 18 LED 5050 White Light Bulb Home included. Do not you think it is cool? Take actions now.

Apart from this excellent LED gadgets, Bluelans also afford a series of Android Smartphones and Wholesale Cell Phones to meet your requirements. The only thing you should do is to trust us and have a try, we always make things better.

All this high quality low price cool things are available for a low China wholesale price from Bluelans.

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