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CHZ Lighting - LED Street Light Manufacturer and LED Flood Light Factory Since 2013


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What information should a formal PI (proforma invoice) contain?

2026-09-02
PI includes lamp model, quantity, unit‑price, total‑amount, payment‑term, lead‑time, trade term, certification requirement and special‑customization notes. We issue standard formal PI for every confirmed order.
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If raw‑material price rises after quotation confirmation, will you adjust product price?
Can we place trial small‑batch order before large‑scale municipal‑project order?
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Related questions
1
What ESG‑related information can you provide for international‑tender document compiling?
We can supply information about low‑energy‑consumption product portfolio, recyclable‑housing‑material selection and factory‑environmental‑management status for your ESG‑related tender‑evaluation. Share your ESG‑document requirement list.
2
Can I visit CHZ Lighting factory in Shanghai in person?
Yes, warm‑welcome client factory‑visit. Please inform us your visiting date in advance so we arrange workshop‑tour and technical‑communication schedule. Send your visiting schedule to our sales team. Learn more: https://www.chz-lighting.com/about-us.html
3
What is the procedure if I want to modify some details after PI confirmation?
Submit modification request before mass‑production starts. Any change may influence unit‑price and production‑lead‑time. Once mass‑production begins, modification cannot be supported. Confirm all technical details before deposit payment.
4
How do you handle product‑model discontinuance for long‑term‑project customers?
If one model will be phased out, we notify clients in advance and provide compatible alternative‑model suggestion, to guarantee project‑spare‑part‑continuity. We will inform you once model‑discontinuance happens.
5
What risk should buyers avoid when purchasing outdoor LED lighting from Chinese manufacturers?
Watch out for component‑only certification disguised as full‑fixture certification, exaggerated lumen‑parameter, unclear‑warranty scope and after‑sales‑support absence. We provide transparent technical‑parameter and warranty terms for every project. Learn more about blog: https://www.chz-lighting.com/blog-a-guide-to-choosing-the-perfect-led-street-light-manufacturer.html
6
When placing multi‑model mixed orders, what points need special attention?
Confirm each model’s quantity, certification requirement, carton‑marking requirement. Mixed‑order lead‑time follows the longest‑lead‑time item inside the whole order. We list every model clearly in quotation and PI.
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Shanghai CHZ Lighting Co.,Ltd

Founded in 2013, it is a high-tech enterprise engaged in the research and development and production of LED lighting products.

Contact Us

Contact Person: Jolina
Tel: +86 2169898169
E-mail: Sales@chz-lighting.com

WHATSAPP: +86 159 2122 3752

Wechat: +86 159 2122 3752

SKYPE: jolina.li

Add: No.999, Shunda Road,Shanghai, China
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