Product Description - CH1157ST Series Dual Mode T8 LED Tube
CH1157ST Series Dual Mode T8 LED Tube
The CH1157ST Series Dual Mode T8 LED Tube is a highly adaptable, professional-grade linear commercial lighting solution engineered to streamline large-scale fluorescent retrofits. Featuring an advanced hybrid driver architecture, this universal lamp functions flawlessly across two distinct installation methods: Plug-and-Play (Type A ballast-compatible mode) for immediate integration with existing instant-start electronic ballasts, or Ballast Bypass (Type B direct-wire mode) for maximizing long-term energy savings by removing failure points. Outfitted with an on-board 3CCT selectable toggle switch, installers can choose between 3500K, 4000K, or 5000K color temperatures directly in the field. This standard G13 medium bi-pin tube is fully compatible with both shunted and non-shunted sockets in single- or double-ended layouts. It stands as the definitive choice for facilities managers aiming to reduce maintenance cycles and stock complexity across warehouses, schools, retail interiors, and parking enclosures.
Key Features
- Universal Dual-Mode Compatibility: Functions as a Type A plug-and-play lamp with instant-start electronic ballasts, or switches to a Type B ballast-bypass direct-wire system for maximum lifespan.
- 3CCT Field-Selectable Switch: Outfitted with an on-board slider switch allowing on-site selection between crisp Warm White (3500K), Cool White (4000K), or Daylight (5000K) color balances.
- Flexible Socket Configuration: Direct-wire mode supports both single-ended and double-ended wiring schemes, operating beautifully with both shunted and non-shunted G13 bi-pin lampholders.
- Industrial Failure Protection: Built with proactive internal electronics designed to protect against ballast-related lamp damage and circuit overloads during its operational life.
- High-Efficacy Commercial Lifespan: Rated for a 50,000-hour service life with a robust DLC 5.1 Qualification and UL classification to dramatically lower maintenance overhead.
- High Voltage System Ready: Fully compatible with dedicated step-down industrial transformers, enabling seamless integration into heavy-duty 480V electrical systems.
Product Specifications
| Attribute | Specification |
| Product Series / Model | CH1157ST Dual-Mode Hybrid Series |
| Lamp Profile | T8 Linear Recessed Replacement Tube |
| Interface Base | G13 Medium Bi-Pin Base Connection |
| Operation Infrastructure | Type A (Ballast Compatible) / Type B (Direct-Wire Line Voltage Bypass) |
| Line Voltage Input Range | 120-277V AC (In Bypass Mode Layouts) |
| Ballast Compatibility | Optimized for Most Instant-Start Electronic Ballasts |
| Color Temperature Selection | 3500K / 4000K / 5000K (Field Selectable via CCT Switch) |
| Color Rendering Accuracy | CRI 83 Standard Output Spectrum |
| Glass Tube Beam Dispersion | 220° (Glass Powder Coated Trim) / 160° (Glass Shell with PET Layer) |
| Operational Lifetime | 50,000 Hours (L70 Performance Metrics) |
| Certifications & Quality Marks | DLC 5.1 Qualified, UL Classified, cUL Classified, FCC Compliant |
| Factory Warranty | 5-Year Comprehensive Commercial Product Protection |
Performance Matrix by Length & Wattage
| Nominal Tube Length | System Wattage | Luminous Flux Output Range |
| 2 Feet (24 Inches) | 10W | 1,425 – 1,450 lm |
| 3 Feet (36 Inches) | 12W | 1,675 – 1,700 lm |
| 4 Feet (48 Inches) | 10.5W | 1,700 – 1,800 lm |
| 4 Feet (48 Inches) | 12.5W | 1,775 – 1,800 lm |
| 4 Feet (48 Inches) | 13W | 1,900 – 1,950 lm |
| 4 Feet (48 Inches) | 15W | 2,150 – 2,200 lm |
Applications
- Office & Commercial Real Estate: Direct replacement for energy-draining fluorescent troffers across corporate spaces, open cubicle floors, and conference rooms.
- Schools, Universities & Daycares: Provides low-glare, flicker-free light to cultivate high-focus learning spaces in libraries, classrooms, and study centers.
- Industrial Warehouses & Manufacturing: High-lumen output combined with 480V transformer compatibility makes this series perfect for heavy industrial assembly bays and storage aisles.
- Retail Centers & Supermarkets: Enhances merchandising appeal with uniform, crisp illumination across grocery racks, boutique floors, and checkout paths.
- Parking Garages & Municipal Buildings: Delivering long-lasting, weatherproof performance when housed inside vapor-tight enclosures across public infrastructure zones.
Product Specifications PDF
Shipping
We offer FREE SHIPPING for orders with a minimum of $1000.00 in total amount to US destinations only except Hawaii and Alaska. This offer is subject to change without prior notice.
We can ship anywhere within United States and to some parts of the world. Note that there are restrictions on some products, and some products cannot be shipped to destinations outside California.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for the items we sell are weight-based. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Returns Policy
You may return most new, unopened items within 1 year of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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