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Artificial light(LED Grow Lights) can be used for plant growth in three different ways: 1. To provide all the light a plant needs to grow 2. To supplement sunlight, especially in winter months when daylight hours are short. 3.To increase the length of the "day" in order to trigger specific growth and flowering. Here are several reasons why you may choose to grow your leafy greens under led lights. 1- you may not have a readily accessible sunny window ledge or you may not have enough of them. I have a kitchen window ledge that gets good sun in summer but very little in winter. 2- using our desk light series you can use the lights to grow your sprouts as well as light the work area of the desk(the shade rotates to adjust the spread of light). A great break from work to look up and see your salad growing in front of you, or on your kitchen bench shedding extra light on your chopping board.. 3-you may

标签： LED 植物 照明 LED用于植物生长照明的探讨 LED用于植物生长照明的探讨 作者： Panic 2007年6月18日 前几天做了 水族灯 ，除了对电路部分做了研究之外，对实际的照明效果也做了观察。 经过一周的持续照明，鱼缸中的水草并没有明显的生长，相反的，水草的色泽反而变淡了。 我查阅了一些关于植物光照需求方面的资料，基本的，以下的观点被广泛认可： 1，植物光合作用需要的光线，波长在400 ~ 700nm左右。 2，不同波长的光线对于光合作用的影响是不同的，400 ~ 520nm（蓝色）的光线以及610 ~ 720nm（红色）对于光合作用贡献最大。 3，520 ~ 610nm（绿色）的光线，被植物色素吸收的比率很低。 这些观点源自一篇名为“Photo morphogenesis in Plant”的论文，作者是R. E. Kendrick 和G. H. M. Kronenberg (1986年,Martinus Nijhoff Publishers)。 按照这些原理，市面上销售的植物灯，都提供红兰两种波长的光线，覆盖光合作用所需的波长范围。视觉效果上，植物灯都呈现粉红色。 而现有白光LED，最普遍的是使用蓝色核心，激发黄色荧光粉，由此复合产生视觉上的白光效果。能量分布上，在445nm的蓝色区和550nm的黄绿色区存在两个峰值。而植物所需的610 ~ 720nm红光，则非常缺乏。 这就解释了为什么在白光LED照射下，植物生长不利。 为了能够有效促进植物生长，光源必须提供恰当波长的光线，以下是不同颜色LED所发射光线的波长表： royal blue 品蓝：445nm 440nm~460nmblue 蓝色：470nm 460~490nmcyan 青色：505nm 490~520nmgreen 绿色 :530nm 520~550nmred 红色：627nm 620~645nmred-orange: 617nm 613~620nmamber:琥珀色 590nm 585~597nm 从这个表中，我们不难发现，蓝色(470nm)和红色(627nm)的LED，刚好可以提供植物所需的光线，因此，LED植物灯，比较理想的选择就是使用这两种颜色组合。 实际上，就在我研究这个问题的同时，国外已经有相关的产品上市，详见： ht

These lamps consist of 3000 x 1watt high-intensity LEDs *Powerful 300w led grow light to replace standard 1300W to 2000W HPS grow light CL-GLU300RB-16-E(EU plug) / CL-GLU300RB-16-N(North American plug) Lumens :10080 Lm Voltage :AC110V/220V LED Qty :300PCS Work frequency :50/60 Hz Lighting Area :180 M² Input current :0.5 - 0.8A Red LED :630nm Blue LED:460nm /470 nm Dimensions 480x315x94 mm Housing material :Rectangle-White-painted /- Chrome Packing: 580x430x185mm/pcs N.W :7.50 KG Unit Price(US$/Piece) US$ 1045 <100pcs>101 US$ 985>301pcs *Lifetime over 50,000 hours *Use only the exact spectrums required for plant photosynthesis * Built-in thermo-sensitive devices cut off power supply when over-heating happens, either due to high ambient temperature or ventilation fans problem *The low heat emission eliminates the need for ducting & heat exhaust fans *Ideal for all phases of plant growth , and works well with any indoor garden, whether hydroponics or soil based *No setu

90W UFO led grow lights These lamps consist of 90 x 1watt high-intensity LEDs, 70 Red + 20 Bluethey are designed to fit the colour spectrum required for plant growth . Red: 630nm or 660nm choice CL-GLU90RB-15-E(EU plug) / CL-GLU90RB-15-N(North American plug) Lumens :3150 Lm Voltage :AC110V/220V LED Qty :90PCS Work frequency :50/60 Hz Lighting Area :60 M² Input current :0.5 - 0.8A Red LED :630nm Blue LED:460nm /470 nm Dimensions :￠270mm x (H)60mm Housing material :White-painted Packing: 570x330x340mm/4pcs N.W :2.50 KG Unit Price(US$/Piece) US$ 225 <100pcs>101<300pcs>301pcs CL-GLU90RB-23-E(EU plug) / CL-GLU90RB-23-N(North American plug) Lumens :3150 Lm Voltage :AC110V/220V LED Qty :90PCS Work frequency :50/60 Hz Lighting Area :60 M² Input current :0.5 - 0.8A Red LED :630nm Blue LED:460nm /470 nmDimensions :￠270mm x (H)60mm Housing material :White-painted Packing: 570x330x340mm/4pcs N.W :2.50 KG Unit Price(US$/Piece) US$ 240 <100pcs>101<300pcs>301pcs CL-GLU9

LED Plant Grow Light,LED Grow Light Here are several reasons why you may choose to grow your leafy greens under lights. 1- you may not have a readily accessible sunny window ledge or you may not have enough of them. I have a kitchen window ledge that gets good sun in summer but very little in winter. 2- using our desk light series you can use the lights to grow your sprouts as well as light the work area of the desk(the shade rotates to adjust the spread of light). A great break from work to look up and see your salad growing in front of you, or on your kitchen bench shedding extra light on your chopping board.. 3- you may have a large family or like me like lots of salad so you can easily turn a bookshelf into your own personal salad farm. 4- as mentioned before growing sprouts inside is very convenient and free from animal and insect competition, growing under lights gives you flexibility as to where you do it with limited space, and growth rates are not affected by season, making h