离岸价格
获取最新报价3 ~ 15 USD / Piece ( Negotiable )
|10 Piece Minimum Order
国家:
China
型号:
-
离岸价格:
3 ~ 15 USD / Piece ( Negotiable )获取最新报价
位置:
Baoding,Hebei Province
最小订单价格:
3 per Piece
最小订单:
10 Piece
包装细节:
standard export package
交货时间:
within 30 days after having the prepayment.
供应能力:
50000 Piece per Month
付款方式:
PayPal, Western Union, L/C, T/T
產品組 :
-
联系人 Ms. Judy
West Fuxing Road, Baoding, Hebei
High-pressure sodium lamps (sometimes called HPS lights) are
commonly used as plant grow lights. They have also been widely
used for outdoor area lighting such as streetlights and security.
Understanding the change in human color vision sensitivity from
photopic to mesopic and scotopic is essential for proper planning
when designing lighting for roads.
High-pressure sodium lamps are quite efficient—about **0
lm/W—when measured for photopic lighting conditions. The higher
power lamps (**0 W) have an efficiency of **0 lm/W.
Because the high-pressure sodium arc is extremely chemically
reactive, the arc tube is typically made of translucent
aluminum oxide. This construction led General Electric to use
the trade name "Lucalox" for their line of high-pressure sodium
lamps.
Xenon at a low pressure is used as a "starter gas" in the HPS
lamp. It has the lowest thermal conductivity and lowest
ionization potential of all the non-radioactive noble gases. As
a noble gas, it does not interfere with the chemical reactions
occurring in the operating lamp. The low thermal conductivity
minimizes thermal losses in the lamp while in the operating
state, and the low ionization potential causes the breakdown
voltage of the gas to be relatively low in the cold state,
which allows the lamp to be easily started.
High-pressure sodium lamps have a broader spectrum of light
than the low-pressure lamps, but still poorer color rendering
than other types of lamps. Low-pressure sodium lamps only give
monochromatic yellow light and so inhibit color vision at
night.
Q1. Can I have a sample order for high pressure sodium
light?
A: Yes, we welcome sample order to test and check quality.
Mixed samples are acceptable.
Q2. What about the lead time?
A:Sample needs **5 days, mass production time needs **2
weeks for order quantity more than
Q3. Do you have any MOQ limit for high pressure sodium
light order?
A: Low MOQ, **0PCS
Q4. How do you ship the goods and how long does it take to
arrive?
A: For the small amount , we usually ship by DHL, UPS,
FedEx or TNT. It usually takes **5 days to arrive. Airline
and sea shipping also optional.
For big amount we usually ship by shippment or as you
required.
Q5. How to proceed an order for high pressure sodium
light?
A: Firstly let us know your requirements or
application.
Secondly We quote according to your requirements or our
suggestions.
Thirdly customer confirms the samples and places deposit
for formal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on high pressure sodium
product?
A: Yes. Please inform us formally before our production and
confirm the design firstly based on our sample.
国家: | China |
型号: | - |
离岸价格: | 3 ~ 15 / Piece ( Negotiable ) 获取最新报价 |
位置: | Baoding,Hebei Province |
最小订单价格: | 3 per Piece |
最小订单: | 10 Piece |
包装细节: | standard export package |
交货时间: | within 30 days after having the prepayment. |
供应能力: | 50000 Piece per Month |
付款方式: | PayPal, Western Union, L/C, T/T |
產品組 : | - |