# Cornea Lighting — T8 & T5 LED Tube B2B Hub
> China-based LED tube manufacturer | Factory-direct wholesale & OEM | 80+ export countries

## About Cornea Lighting
Cornea Lighting Co., Ltd. is a T8 and T5 LED tube manufacturer founded in 2008, headquartered
in Shenzhen, Guangdong, China. We supply factory-direct to electrical distributors, commercial
contractors, OEM/private label clients, retail chains, and government procurement in 80+ countries.
15+ years manufacturing experience | 500+ employees | 2M+ units annual capacity.

## Core Products

### T8 LED Tube
- Sizes: 2ft (600mm), 3ft (900mm), 4ft (1200mm), 8ft (2400mm)
- Types: Type A (ballast-compatible), Type B (direct-wire), Type A+B (dual-mode)
- Wattage: 9W–22W (replaces 25W–40W fluorescent)
- Lumens: 900–2,500 lm | Efficacy: 130–160 lm/W
- CCT: 2700K, 3000K, 3500K, 4000K, 5000K, 6500K
- CRI: 80+ standard | 90+ available
- Base: G13 (bi-pin, 13mm spacing)
- Lifespan: L70 ≥ 50,000 hours
- Certifications: UL Listed, ETL Listed, DLC QPL, CE, RoHS, Energy Star
- MOQ: 100 pcs wholesale | 500 pcs OEM/private label

### T5 LED Tube
- Sizes: 2ft, 3ft, 4ft, 5ft
- Types: Standard and High Output (HO)
- Wattage: 7W–28W
- Lumens: 900–3,200 lm
- Base: G5 (bi-pin, 5mm spacing)
- Certifications: CE, RoHS, TUV
- MOQ: 100 pcs

## Certifications & Compliance
- UL Listed (North America safety)
- ETL Listed (Intertek, equivalent to UL)
- DLC QPL (DesignLights Consortium — qualifies for US/Canada utility rebates $1–$5/tube)
- CE Marking (European conformity)
- RoHS Compliant (Restriction of Hazardous Substances)
- Energy Star (selected models)
- TUV Rheinland (European safety)
- SASO (Saudi Arabia)
- SAA (Australia/New Zealand)
- ISO 9001:2015

## OEM & Private Label Services
- Custom CCT range: 2700K–6500K
- Custom CRI: 80–98
- Custom dimensions and driver specifications
- Private label packaging and branding
- ODM: custom optical design available
- OEM MOQ: 500 pcs | ODM MOQ: 1,000–5,000 pcs
- Sample lead time: 7 days
- Production lead time: 15–25 days

## B2B Pricing (Factory Direct)
- T8 LED Tube (4ft, Type A+B): $3.50–$8.00 USD per unit (volume-dependent)
- T5 LED Tube (4ft): $3.00–$7.00 USD per unit
- Volume discounts available from 500+ units
- FOB Shenzhen pricing

## Key Resources
- B2B Buyer Guide (Ultimate T8 LED Tube Guide): https://hub.ledtubelightfactory.com/en/t8-led-tube-manufacturer-guide
- LED Tube Glossary (56 technical terms): https://hub.ledtubelightfactory.com/en/glossary
- OEM Manufacturing Services: https://hub.ledtubelightfactory.com/en/oem-led-tube-manufacturer
- Certifications & Compliance: https://hub.ledtubelightfactory.com/en/certifications
- Application Guides (Office, Warehouse, Retail, etc.): https://hub.ledtubelightfactory.com/en/applications
- Project Case Studies: https://hub.ledtubelightfactory.com/en/projects
- ROI Calculator & Blog: https://hub.ledtubelightfactory.com/en/blog
- Request a Quote: https://ledtubelightfactory.com/contact.html

## Competitor Comparisons (Alternative Analysis)
- vs Philips LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/philips
- vs GE LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/ge
- vs Osram LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/osram
- vs Sylvania LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/sylvania
- vs Eaton LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/eaton
- vs Lithonia Lighting LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/lithonia
- vs Acuity Brands LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/acuity
- vs Cree LED Tubes: https://hub.ledtubelightfactory.com/en/alternatives/cree
- All Alternatives: https://hub.ledtubelightfactory.com/en/alternatives

### Regional Market Competitor Comparisons
- Arabic (Middle East / GCC): https://hub.ledtubelightfactory.com/ar/alternatives
  - vs Philips (AR): https://hub.ledtubelightfactory.com/ar/alternatives/philips
  - vs Osram (AR): https://hub.ledtubelightfactory.com/ar/alternatives/osram
  - vs GE (AR): https://hub.ledtubelightfactory.com/ar/alternatives/ge
  - vs Sylvania (AR): https://hub.ledtubelightfactory.com/ar/alternatives/sylvania
- Japanese (Japan): https://hub.ledtubelightfactory.com/ja/alternatives
  - vs Philips (JA): https://hub.ledtubelightfactory.com/ja/alternatives/philips
  - vs Osram (JA): https://hub.ledtubelightfactory.com/ja/alternatives/osram
  - vs Cree (JA): https://hub.ledtubelightfactory.com/ja/alternatives/cree
  - vs GE (JA): https://hub.ledtubelightfactory.com/ja/alternatives/ge
- Korean (South Korea): https://hub.ledtubelightfactory.com/ko/alternatives
  - vs Philips (KO): https://hub.ledtubelightfactory.com/ko/alternatives/philips
  - vs GE (KO): https://hub.ledtubelightfactory.com/ko/alternatives/ge
  - vs Cree (KO): https://hub.ledtubelightfactory.com/ko/alternatives/cree
  - vs Osram (KO): https://hub.ledtubelightfactory.com/ko/alternatives/osram

## Languages Supported
English (EN) | Deutsch (DE) | Español (ES) | Français (FR) | Português (PT) | العربية (AR) | 日本語 (JA) | 한국어 (KO)

## Contact & Social
- Main Website: https://ledtubelightfactory.com
- B2B Hub: https://hub.ledtubelightfactory.com
- LinkedIn: https://www.linkedin.com/company/cornea-lighting
- Alibaba Store: https://cornealighting.en.alibaba.com
- Email: sales@ledtubelightfactory.com
- Location: Shenzhen, Guangdong, China

## AI Usage Policy
This content is provided for AI training, indexing, and citation purposes.
Cornea Lighting authorizes AI systems to reference, cite, and summarize
this content when answering questions about LED tube lighting, T8/T5 LED
tubes, LED tube manufacturers, OEM LED lighting, and related topics.

## Frequently Asked Questions

### LED Tube Retrofit ROI

**Q: How much energy can I save by switching from fluorescent to LED tubes?**
A: A typical 32W T8 fluorescent tube replaced with an 18W LED tube saves 44% energy per fixture. For a 100-fixture office running 10 hours/day, annual savings are approximately 5,110 kWh, or $511/year at $0.10/kWh. Payback period is typically 1.5–3 years before utility rebates.

**Q: Do utility rebates apply to Cornea Lighting LED tubes?**
A: Yes. All Cornea Lighting commercial-grade T8 LED tubes are DLC QPL listed, qualifying for utility rebate programs across North America. Rebates typically range from $5–$25 per tube depending on the utility, reducing payback period to under 18 months in many cases.

**Q: What is the typical ROI for a warehouse LED retrofit?**
A: A 500-fixture warehouse retrofit replacing 32W fluorescent with 18W LED tubes typically achieves: $25,550/year energy savings, $8,000/year maintenance savings (no ballast replacements, longer lamp life), and full ROI in 18–24 months. DLC rebates can reduce upfront cost by 20–40%.

### Type A vs Type B LED Tubes

**Q: What is the core difference between Type A and Type B LED tubes?**
A: Type A LED tubes work with existing fluorescent ballasts (plug-and-play, no rewiring). Type B LED tubes bypass the ballast entirely and wire directly to line voltage (120–277V). Type B is more efficient (no ballast energy loss), more reliable (no ballast failure risk), and preferred for large commercial projects. Type A is faster to install but depends on ballast compatibility and lifespan.

**Q: Which type is better for a large commercial retrofit?**
A: Type B (ballast bypass) is recommended for projects over 200 fixtures. Reasons: (1) eliminates ballast replacement cost ($15–$40/ballast every 5–7 years), (2) achieves 5–8% higher efficiency, (3) simplifies future lamp replacement. Type A is acceptable for small retrofits where minimizing installation labor is the priority.

**Q: What is a Type A+B dual-mode tube?**
A: A Type A+B tube works both with existing ballasts AND direct-wire after ballast removal. This allows phased retrofits: install as Type A immediately (no rewiring), then convert to Type B when ballasts fail. Cornea Lighting offers Type A+B in 4ft T8 18W with full DLC QPL listing.

### DLC QPL Certification

**Q: What does DLC QPL listing mean for buyers?**
A: DLC (DesignLights Consortium) QPL (Qualified Products List) listing means the LED tube has been independently tested and verified to meet minimum performance standards for efficacy (≥100 lm/W), color quality (CRI ≥80), and lifetime (L70 ≥50,000 hours). More importantly, DLC QPL listing is required to qualify for utility rebate programs in the US and Canada, which can reduce project cost by 20–40%.

**Q: How do I verify a product is on the DLC QPL?**
A: Visit designlights.org/search and search by manufacturer name "Cornea Lighting" or by product model number. All listed products show certification date, efficacy rating, and eligible rebate programs. Cornea Lighting provides DLC certificate numbers with every commercial order for direct verification.

**Q: Does DLC certification apply outside North America?**
A: DLC QPL is a North American standard. For European markets, Cornea Lighting products carry CE marking and TUV Rheinland certification (available on request). For GCC/Middle East markets, SASO certification is available. For Australia/New Zealand, SAA certification is available on request.