Two Versions, Designed for Different Needs
Luguang and Luguang Lite are built for two distinct usage scenarios:
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Luguang: Security-first, focused on encryption and privacy control
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Luguang Lite: Speed-first, focused on fast backup and plug-and-play convenience
If you prioritize data security, choose Luguang.
If you prioritize backup efficiency, choose Luguang Lite.
Lumin
Security First · Full-File Encryption · Private and Controlled
Luguang uses file-level encryption. All data backed up to the USB drive is encrypted and can only be accessed through the dedicated app after decryption.
Key Features
🔐 All files are encrypted before being stored on the USB drive
🧩 One File, One Key (each file encrypted independently)
👤 Account registration required
🔒 App lock supported (authentication required to enter)
📂 Supports backup of photos, videos, documents, and audio files
🛡 If the USB drive is lost, data cannot be accessed directly
Performance Notes
Because encryption is applied during the writing process:
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Write speed is slightly slower than the Lite version
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Files must be decrypted before being viewed
This is the necessary computational cost of stronger data protection.
Ideal For
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Storing work files, contracts, certificates, or other sensitive documents
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Users with high privacy and security requirements
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Anyone who wants data to remain protected even if the USB drive is lost
Lumin Lite
Speed First · No Encryption · Plug and Play
Luguang Lite writes original files directly to the USB drive without encryption.
Key Features
⚡ Files stored in original format for faster read and write speeds
🚀 No registration required, ready to use instantly
🖼 Supports photo and video backup
💻 Files can be viewed directly when the USB drive is connected to a computer
🧭 Simpler and more streamlined workflow
Performance Advantages
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No encryption processing overhead
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Faster continuous write speeds
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Smoother backup for large volumes of photos and videos
Ideal For
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Users who only need photo and video backup
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Those who prefer not to register an account
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Users who value quick backup and quick access
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Those who need direct file access from a computer
Feature Comparison
| Feature | Luguang | Luguang Lite |
|---|---|---|
| File Storage Method | Encrypted | Plain (Unencrypted) |
| Encryption Model | One File, One Key | None |
| Read/Write Speed | Slightly slower (encryption processing) | Faster (no encryption) |
| Registration Required | Yes | No |
| Supported File Types | Photos / Videos / Documents / Audio / Contacts | Photos / Videos / Contacts |
| App Lock | Supported | Not supported |
| If USB Is Lost | Data cannot be accessed directly | Files can be accessed directly |
| Direct Computer Access | Not supported | Supported |
How to Choose?
If data security matters most → Choose Lumin
If backup speed matters most → Choose Lumin Lite
Security and efficiency represent different trade-offs for different scenarios.
We provide two versions so you can choose the one that fits your needs best.
Update Date: April 06, 2026
What’s New:
- Improved thumbnail quality for clearer image previews
- Upgraded list view to grid layout for a more intuitive browsing experience
- Fixed known issues and enhanced overall stability
Update Date: Mar 10, 2026
What’s New:
1. New Contact Backup Feature
You can now back up your phone contacts to external storage. The backup includes:
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Contact name
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Phone numbers
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Email addresses
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Company information
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Contact photos
This makes it easy to back up contacts, migrate your address book, and protect your data.
2. Intelligent Merge During Restore
When importing contacts, the system automatically detects existing contacts on your phone.
It matches contacts by phone number or email address and intelligently merges the information to prevent duplicate contacts.
3. More Complete Contact Restoration
During restoration, the system not only restores basic contact details but also supports company information and contact photos, ensuring a more complete and accurate contact list.