Special Price for led flood lamp sports field lighting 200w in Botswana
Special Price for led flood lamp sports field lighting 200w in Botswana Detail:
led flood lamp sports field lighting 200w
|Product Name||waterproof 200w led flood light|
|Color temp||White/Warm White|
|Lamp Luminous Efficiency(lm/w)||80LM/W|
|Color indexc(CRI)||Ra ≥80|
wall, advertising board, store,
1. Optical light distribution, no glare, no light pollution, high lighting effect and high uniformity.
2. High power factor, energy conservation and environment protection.
3. Surface treatment: coating treatment, high weather-ability, and rich colors.
4. Integrated heat dispersion of the housing; artistic and novel appearance design.
Matters Needing Attention
1. The light’s waterproof grade is IP65, able to withstand rains, but it can’t work under water.
2. Cut off power supply before and in installation process. If the product is damaged due to mal-operation, it shall not be guaranteed. Please have it mounted by a professional.
3. The light’s operating ambient temperature is between -25℃ and 45℃. The temperature of operational site shall not exceed 45℃, to ensure the light’s service life.
4. Since the light power is high, when power line is arranged, it’s necessary to select a proper power line according to actual power, and supply power in single phase.
5. Please don’t dismount the light without authorization. Please contact professional maintenance personnel or the manufacturer if the light isn’t lit or is faulty otherwise.
Warranty waterproof 200w led flood light ce rohs Applications for shopping center,exhibition hall,parking lot, stadium,gymnasia,billboard,park,statue,government lighting decoration project, landmark or building, public square and passage,building connecting passage,and other indoor or outdoor light applications.
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Special Price for led flood lamp sports field lighting 200w in Botswana , The product will supply to all over the world, such as: , , ,
During the Australian summer of 2013 / 2014 there has been a huge number of Cicadas where I live, these interesting and harmless insects lead a very unusual life, much of which is spent underground for many years. Once they emerge and morph into adults they only have a few weeks to complete their amazing life cycle. The most important part of this life cycle is the mating between a male and female Cicada. This time of their lives can be seen as the end, but it is also the start of the next generation of Cicadas who need to avoid a number of natural hazards over many years to be adults and mate again.
To see a promo for an amazing nature study into the very unusual American Periodical Cicada please follow this link. The video will show the full life cycle in amazing detail and reveal many mysteries of these beautiful insects.
Return of the Cicadas : http://vimeo.com/66688653
The video Return of the Cicadas is a film produced by Samuel Orr, he’s a natural history film maker who has a very special interest in time lapse photography. He’s perfectly suited to studying a Cicadas life cycle.
Cicadas alternatively spelled as Cicala or Cicale, are insects in the order Hemiptera, suborder Auchenorrhyncha (which was formerly included in the now invalid suborder Homoptera). Cicadas are in the superfamily Cicadoidea. Their eyes are prominent, though not especially large, and set wide apart on the anterior lateral corners of the frons. The wings are well-developed, with conspicuous veins; in some species the wing membranes are wholly transparent, whereas in many others the proximal parts of the wings are clouded or opaque and some have no significantly clear areas on their wings at all. About 2,500 species of cicada have been described, and many remain to be described. Cicadas live in temperate-to-tropical climates where they are among the most-widely recognised of all insects, mainly due to their large size and unique sound. Cicadas are often colloquially called locusts, although they are unrelated to true locusts, which are various species of swarming grasshopper. Cicadas are related to leafhoppers and spittlebugs.
Cicadas are benign to humans under normal circumstances and do not bite or sting in a true sense, but may mistake a person’s arm or other part of their body for a tree or plant limb and attempt to feed. Cicadas have a long proboscis, under their head, which they insert into plant stems in order to feed on sap. It can be painful if they attempt to pierce a person’s skin with it, but it is unlikely to cause other harm. It is unlikely to be a defensive reaction and is a rare occurrence. It usually only happens when they are allowed to rest on a person’s body for an extended amount of time.
Cicadas live underground as nymphs for most of their lives, at depths ranging from about 30 centimetres (0.98 ft) down to 2.5 metres (8.2 ft). The nymphs feed on root juice and have strong front legs for digging. In the final nymphal instar, they construct an exit tunnel to the surface and emerge. They then molt (shed their skins) on a nearby plant for the last time and emerge as adults. The exuvia, or abandoned exoskeleton, remains, still clinging to the bark of trees. After mating, the female cuts slits into the bark of a twig, and into these she deposits her eggs. She may do so repeatedly, until she has laid several hundred eggs. When the eggs hatch, the newly hatched nymphs drop to the ground, where they burrow. Most cicadas go through a life cycle that lasts from two to five years. Some species have much longer life cycles, such as the North American genus, Magicicada, which has a number of distinct “broods” that go through either a 17-year or, in some parts of the world, a 13-year life cycle. These long life cycles perhaps developed as a response to predators, such as the cicada killer wasp and praying mantis. A predator with a shorter life cycle of at least two years could not reliably prey upon the cicadas.
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