Prix FOB
Obtenir le dernier prix3 ~ 15 / Piece ( Negotiable )
|10 Piece Minimum Order
Pays:
China
N ° de modèle:
-
Prix FOB:
3 ~ 15 / Piece ( Negotiable )Obtenir le dernier prix
Localité:
Baoding,Hebei Province
Prix de commande minimale:
3 per Piece
Commande minimale:
10 Piece
Packaging Detail:
standard export package
Heure de livraison:
within 30 days after having the prepayment.
Capacité de Fournir:
50000 Piece per Month
Payment Type:
PayPal, Western Union, L/C, T/T
Groupe de produits :
-
Personne àcontacter 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.
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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 thanÂ
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.
Pays: | China |
N ° de modèle: | - |
Prix FOB: | 3 ~ 15 / Piece ( Negotiable ) Obtenir le dernier prix |
Localité: | Baoding,Hebei Province |
Prix de commande minimale: | 3 per Piece |
Commande minimale: | 10 Piece |
Packaging Detail: | standard export package |
Heure de livraison: | within 30 days after having the prepayment. |
Capacité de Fournir: | 50000 Piece per Month |
Payment Type: | PayPal, Western Union, L/C, T/T |
Groupe de produits : | - |