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1pcs A4 210*297mm 3D Fireworks Films with lines,0.65mm Diffraction Film,13500 Lines/Spirals Diffraction Grating Sheets Filters

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3D fireworks film with lines, diffraction film,13500 Line/Inch Diffraction Grating Sheet

Feature:

  • A4 13500 Lines/Spirals Diffraction Gratings sheets;
  • Used for direct viewing and analysis of spectrum;
  • Recommended to use in conjunction with colored film gels;
  • Sheet of Diffraction Grating that has 13,500 lines/Spirals per inch sheet;
  • Every 13500 Lines Diffraction sheet is separated by a faint line. The line does not distort or disturb the light quality of the diffraction;
  • Diffraction Gratings are used for direct viewing and analysis of spectra from different gas tubes and other light sources;
  • The quality of the spectrum produced from these gratings is the brightest possible with a minimal distracting visual noise;
  • These gratings are the principal component in a spectroscope and are used for experiments pertaining to the study of light and color.

Usage:

  • Fireworks and Firework Shows
  • Science Class and Learning the study of light waves
  • Holiday and Christmas lights
  • Festivals and carnival
  • Light shows
  • EDM Events and Raves
  • Music Festivals
  • Lasers
  • Led Gloving and orbit light shows
  • Enhancing any light-shows or performances

SHIPPING AND DELIVERY

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

REFUNDS & RETURNS POLICY

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of TheBigStore (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of www.thebigstore.co.za

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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