Solar Dynamo Radio with Charger and Flash Light
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 100000 pc/month
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Quality Product, Order Online Tracking, Timely Delivery
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Product Description
| Light source | Incandescent / LED |
| Lifetime | 2000 hours |
| Cetification | UL/CE/CSA/SAA |
| Work environment | Indoor/Outdoor |
| Warranty(years) | 2 years |
| Working Temperature | -20℃~85℃ |
| Lamp body material | Copper and plastic |
| Packaging Details | color box/mail box/white box |
FAQ:
1. How about your campany?
We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.
2. How to guarantee the quality of the products?
We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.
3. How long can we receive the product after purchase?
In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.orld class manufacturer & supplier of castings forging in carbon steel and alloy steel,is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.
- Q: is this enough light for elodea/egeria to thrive or should I buy a full spectrum grow light? northern light is from a far window
- The type (color) of light is a factor in plant growth, but the amount of light is far more important. You should get good growth using adequate amounts of florescent, incandescent, natural sunlight, or any combination. A full spectrum grow light or natural light will generally provide better results than florescent or incandescent lights. As far as cost is concerned, natural light is free, but you'll need to be close to a window and it may make the water too warm. Florescent lights usually cost a bit more than incandescent, but use less electricity.
- Q: If the frequency of light is known what equation gives the wavelength of light?For frequency write nuFor wavelength write lambda
- A useful property of light is that you ALWAYS know its speed. The speed of light is a universal constant, called c. c = 3.00*10^8 m/s That should enable you to use the speed-frequency-wavelength equation more successfully.
- Q: Where can I get LED Office Lighting company ?
- Hi, Office LED lighting is the way to go for smart business owners who are keen on improving productivity, saving costs, contributing to a greener world and keeping their employees happy. Office Led lighting bring great benefits by directly enhancing productivity. We provide Led lighting retrofit program for your offices. Choosing office LED lighting brings lots of benefits. You can easily install energy efficient LED lighting in your office. They help save on operating costs by consuming less electricity and also with fewer bulbs you can achieve the same level of illumination as you did with incandescent fixtures. Energy efficient lighting with ESI reduces your energy bills considerably. LED lighting is recommended even by the US Department of Energy and offers substantial savings to commercial businesses. When you consider lighting for your office, bear in mind that in the commercial market, it is the lighting fixtures that consume the maximum amount of energy, almost three times that of energy consumed by air conditioning.
- Q: what's the difference between incandescent and flourescent lights?
- incandescent lights are the ones the tungstun filiment inside inside. IF your wanting to know the differences of one vs the other in the tank. incandescent bulbs are really no longer used in practicle fish keeping. They use more energy in the form of heat than light. Flourescents run much cooler, have a far more efficient light, both in energy to light conversion and the ability to maintain healthy live plants.
- Q: in history, who were the old lights and new lights?
- Military okorder /
- Q: I know it sounds odd but if a car at night with it's lights on is passing me by @ 25 mph isn't the light from the headlights traveling @ light-speed plus 25 mph?
- That's a great question. it's those types of questions which lead Einstein to realize the general theory of relativity. You see no matter from what perspective the speed of light is measured, now focus on this, it is always measured as the same. Remember that speed is a measure of the distance traveled in a certain amount of time, or Distance/Time. So one person in a stationary car will measure the speed of light to be 299,792,458, but someone in a car moving at a rate of 100 meters/sec would measure the speed of light as the SAME. HOW IS THIS? This was completly bafeling to scientists, they didnt know how to explain this. Well since we would normally expect the person in the moving car to register the speed of light as either +100 m/s or -100 m/s depending on which way the car is going, either towards the light or away. But since we measure the speed of light as the same or basically that the viewers disagree on how far the light has traveled. Since they disagree on how far the light has traveled or distance, then the only way to balance the equation is that they disagree on the time that it took. So its like this time 1.........................TIME 2 --------- ...........=.......------------- distance 1................DISTANCE 2 (notice I put the first in all lowercase to give the idea that both are smaller, and the second in all caps because both are bigger the time and the distance) or like this 2/2 = 23/23 So that's basically how Einstein came up with the general theory of relativity and causes what we know as time dilation I hope that kinda helps you visualize
- Q: Hey, I seen a picture today of the northern lights today and it was in New Zealand which is south of the equator. So how can it be called NORTHern lights when its in the south ? I think of the northern light typically appearing in the Artic which is the north pole.
- There are lights at both poles. The Northern Lights are called the Aurora Borealis. The Southern Lights are called the Aurora Australis. Those terms really only mean 'northern lights' and 'southern lights'.
- Q: What is better dark or light colors(for braces)?
- I have pink (not the neon pink) for most of my time with braces. Light is better and makes your teeth look brighter.
- Q: For smoking, they have Marlboro lights, Camel lights and so on, but why do they not make a Copenhagen light or a Grizzly wintergreen light? This is just one question of many that frustrate me. Someone please give me an answer.
- Light cigarettes work by adding air vents to the filters that dilute the smoke, not by using light tobacco.
- Q: ,fluorescent light, and light from emission tubes what type of energy was converted to radiant energy in each case explain please
- is the stardard light bulbs you usually buy from the store, where it uses electrical current passing through a thin filament, heating it and causing it to become excited, releasing thermally equilibrated photons in the process. Fluorescent light
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Solar Dynamo Radio with Charger and Flash Light
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 100000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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