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


Faqs
1
What factors should we consider when choosing solar‑panel tilt‑angle?
Local latitude, solar altitude‑angle and seasonal sunlight variation determine optimal solar‑panel tilt‑angle. We can recommend tilt‑angle for your project location. Tell us project latitude for solar‑panel angle suggestion.
2
How to clean solar panel for solar street‑light on‑site maintenance?
Clean solar‑panel surface dust with soft cloth and clean water periodically. Heavy dust coverage will reduce charging efficiency and shorten night‑working hours. [[Link‑Blog‑solar‑troubleshooting]] We include solar‑lamp maintenance tips in user manual.
3
What will happen if solar street‑light battery is over‑charged or over‑discharged?
Over‑charge / over‑discharge will greatly shorten battery cycle life. Our solar controller has built‑in over‑charge and over‑discharge protection logic. Do not modify controller parameter without technical support approval.
4
Can solar street light work together with grid‑power as hybrid system?
Our standard solar street light is off‑grid. Custom hybrid grid‑solar system can be developed for special‑requirement large‑volume projects. Tell us your hybrid‑system requirement for technical evaluation.
5
What is dusk‑to‑dawn working mode for solar street light?
Dusk‑to‑dawn mode automatically turns on lamp at dusk and turns off at dawn according to solar‑panel voltage change, no manual timing setting required. [[Link‑Solar‑street‑light‑product]] Multiple working modes are programmable for solar lamp.
6
Will solar panel power degrade after long‑time outdoor exposure?
Solar panel has certain annual power attenuation rate. We adopt high‑efficiency monocrystalline silicon panel with low attenuation for engineering solar projects. We provide solar‑panel technical datasheet for review.
7
Can solar street‑light solar panel be mounted separately away from lamp body?
Split‑type solar street light supports separate solar‑panel installation; all‑in‑one solar lamp cannot separate panel from lamp housing. Confirm your installation condition to select split‑type or all‑in‑one model.
8
What is MPPT controller for solar street light?
MPPT solar controller maximizes charging efficiency from solar panel under different sunlight intensity, improving battery charging performance for solar street‑light system. [[Link‑Blog‑solar‑pitfalls]] All our engineering solar street lights adopt MPPT charge controller.
9
How to judge whether LED lamp failure is caused by manufacturing defect or site‑environment damage?
We will analyze failure photos, site environment description and test data to distinguish root cause. Under‑warranty manufacturing defects support spare‑part replacement solution. Please send failure‑lamp photos and site condition for assessment.
10
What problems may happen if lamp installation tilt‑angle is wrong?
Incorrect tilt angle will lead to uneven illumination, serious glare or light waste. DIALux simulation report will mark recommended installation tilt‑angle value. [[Link‑Photometric‑service]] Follow simulation‑suggested tilt‑angle during site installation.
11
Can I extend signal cable for DALI /0‑10V dimming system?
DALI signal cable has maximum transmission‑distance limitation. Over‑long extension will cause signal attenuation and unstable dimming performance. [[Link‑Blog‑DALI‑0‑10V‑comparison]] We evaluate signal‑cable length for your project layout.
12
What is grounding requirement for outdoor LED lighting fixtures?
All metal‑housing outdoor lamps must complete reliable protective grounding, which is mandatory safety requirement for municipal and industrial outdoor projects. Grounding requirement will be mentioned in our installation manual.

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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