SKU: 65839
| Attribute | Details |
|---|---|
| Manufacturer | Bosch Limited |
| Division | Security Systems |
| Product Type | Ceiling Speaker |
| Model | LCZ-UM20-IN |
| Material Number | F.01U.304.585 |
| Rated Power | 20W / 100V Line |
| Impedance | 4 Ohm |
| Construction Tag | Engineering and Quality by Bosch – Gunnebo |
| Country of Manufacture | Made in India |
| Weight | 1.800 kg |
| Condition | Used |
The Bosch LCZ-UM20-IN Ceiling Speaker is a high-quality, premium-grade audio output device engineered under Bosch Security Systems for professional sound reinforcement applications. Designed for clarity, reliability, and long service life, this 20-watt, 100-volt line ceiling speaker is widely used in public address (PA) systems, fire alarm voice evacuation networks, and commercial audio installations.
With a rugged design and manufacturing precision endorsed by Bosch and Gunnebo, this ceiling speaker delivers consistent acoustic performance, making it suitable for malls, offices, hotels, industrial complexes, marine facilities, and security-critical environments. Its 4-ohm impedance provides flexible installation compatibility for various amplifier types.
The LCZ-UM20-IN speaker ensures clear speech, balanced music reproduction, and stable operation even under continuous-duty conditions, making it an excellent choice for safety, communication, and background audio systems.

Key Features:
1. Professional-Grade Audio Output: Designed for PA and voice evacuation systems.
2. 20W / 100V Line Operation: Suitable for distributed sound systems over long cable runs.
3. High Reliability: Built under Bosch’s security and audio engineering standards.
4. Clear Speech Intelligibility: Ideal for announcements and emergency communication.
5. 4-Ohm Support: Allows versatile installation with various commercial amplifiers.
6. Rugged Construction: Engineered for long-term use in demanding environments.
7. Seamless Ceiling Integration: Designed for flush mounting and neat architectural appearance.
8. Wide Application Range: Suitable for commercial, industrial, and marine setups.
9. High-Quality Components: Ensures stable sound performance over years of operation.
10. Engineered by Bosch: Trusted globally for security, communication, and audio reliability.
Applications:
1. Public Address Systems: Offices, malls, hospitals, airports, and commercial buildings.
2. Voice Evacuation Systems: Fire alarm and emergency messaging networks.
3. Security & Surveillance Installations: Integrated with alarm and monitoring solutions.
4. Industrial Premises: Factory floor announcements and safety communication.
5. Marine & Offshore Facilities: Shipboard PA and general communication systems.
6. Conference & Meeting Areas: Delivers clear audio for announcements and BGM.
7. Hotels & Hospitality: Background music and paging.
8. Educational Institutions: Schools, universities, training centers.
9. Warehouses & Logistics: Operational announcements and safety alerts.
10. Retail Spaces: Music playback and customer communication.
Explore the high-quality Ceiling Speaker at Aeliya Marine Tech, designed for clear audio output, reliable sound distribution, and long-lasting performance in commercial and industrial environments.
Hassle-Free Returns & Refunds at Aeliya Marine Tech
We at Aeliya Marine Tech are committed to your satisfaction. If you encounter any issues with your purchase, we want to ensure a smooth and worry-free resolution. Here's what you need to know about our return and refund policy:
Peace of Mind with a 30-Day Warranty:
We offer a generous 30-day warranty on all products from the date of delivery. If your product isn't functioning properly within this timeframe, you can easily request a replacement or refund.
What Can Be Returned?
- Products that are not working as expected (non-functional)
- Products with condition or malfunction issues
- Products with minor cosmetic damages (excluding damage caused during shipping)
Easy Return Process:
- Gather Proof of Purchase: Locate your receipt or invoice with the PI/PO Number, Invoice Number, and Date of Delivery.
- Contact Us: Reach out to our friendly customer support team at sales@aeliyamarine.com or call us at +91 9725218537.
- Return the Product: Securely package the product in its original packaging (if possible) and ship it to the address below:
Receiving Your Refund:
Once we receive the returned product, our team will inspect it thoroughly. Upon approval, your refund will be processed and credited back to your original payment method within a specific timeframe (details available in our Payment Terms).
Missing Refund?
If you haven't received your refund after a reasonable timeframe, check your bank account first. If the refund is still missing, contact your credit card company. Processing delays might occur.
Exchanges for Defective or Damaged Items:
We understand the need for a seamless experience. If you receive a defective or damaged item, we offer a straightforward exchange for the same product. Simply contact us via email at sales@aeliyamarine.com, and we'll guide you through the process.
Warranty Validation:
To facilitate a smooth warranty claim, please share proof of purchase along with relevant documentation like pictures or testing videos specific to your product.
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