About Order

  • Can I cancel my order?

    Yes, an order can be cancelled before it’s shipped.

  • What if I have a question before placing an order?

    You can submit a support ticket in the support page. We will answer the question within 24 hours. Or you can contact us by emailing info@vadania.shop

  • How can I get a coupon and apply it?

    We offer different coupons in different channels. You can visit promotion page and follow the instruction to get coupons. Click the ‘Apply Coupon Code’ in the check-out page and enter the coupon code.

  • Can I get a discount for a bulk order?

    Please contact us by emailing info@luminosum.com before placing an order.

About Product

  • How can I write a review for a product?

    You can write a review by clicking the ‘Write a review’ button in the product detail page. We encourage buyers to write a review and share their experience of using the products.

  • What if the product is damaged when arrival?

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  • Must the ballast and starter be removed when installing T8 led tube light?

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  • Are the integrated LED tube lights linkable? What's the max linked qty?

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About Shipping

  • What should I do if the tracking information is delivered but I didn’t receive it?

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  • Who should be responsible for the shipping cost when returning a product?

    If the return reason is caused from customer side, such as buying by mistake, incorrected installation, no longer needed, the return shipping cost should be paid by customer. If the return reason is due to product defectiveness, LUMINOSUM will pay for the shipping cost.

  • Can I ask for a faster shipping service?

    Yes, we offer Standard Shipping for free. You can also pay addtional shipping cost to upgrade to Expedited or Second Day shipping.


  • Any questions?

    Please submit a support ticket in the support page or emailing us via info@luminosum.com

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