
643129387968 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $78.00 | Condition is New, IOTA I-42-EM-R TBTS SERIES AC FLUORESCENT CFL EMERGENCY BALLAST I42 TBTS New , FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $50.00 | Condition is Used, IOTA I-42-EM-R-TBTS-SERIES-AC FLUORESCENT CFL EMERGENCY BALLAST, 120/277V, shipping cost = $13.63 | 100.0% |

The IOTA Engineering i-42-EM-R-TBTS Series AC Fluorescent CFL Emergency Ballast, model number 643129387968, is a versatile and reliable solution for emergency lighting applications. This ballast is designed to work with 120/277V power inputs and can be used with 2-pin or 3-pin CFL lamps, making it a flexible choice for various emergency lighting setups.
The ballast is engineered to provide reliable operation in emergency situations. It includes a self-diagnostic function that checks the bulb and the power supply regularly, ensuring that the emergency lighting system is always ready to operate when needed. In case of a power failure, this ballast activates the connected emergency lamps within milliseconds, providing essential illumination during power outages or other emergencies.
The i-42-EM-R-TBTS Series AC Fluorescent CFL Emergency Ballast is constructed with high-quality components to ensure durability and longevity. It features a compact and sleek design, allowing for easy installation in various lighting fixtures. The ballast is also equipped with overvoltage and overcurrent protection, ensuring safe operation and minimizing the risk of damage to the ballast or the connected lamps.
This ballast is compatible with various emergency lighting applications, including exit signs, emergency lighting fixtures, and other critical lighting systems. Its ability to work with both 120V and 277V power inputs makes it a versatile option for various commercial and industrial applications.
In summary, the IOTA Engineering i-42-EM-R-TBTS Series AC Fluorescent CFL Emergency Ballast is a reliable and efficient solution for emergency lighting applications. Its self-diagnostic function, quick activation, and compatibility with various power inputs and CFL lamps make it a valuable addition to any emergency lighting system. With its durable design and essential safety features, this ballast ensures the reliability and safety of emergency lighting systems in various commercial and industrial applications.
I. Introduction
The IOTA Engineering 643129387968 i-42-EM-R-TBTS-Series AC Fluorescent CFL Emergency Ballast 120/277V is a product designed for use in emergency lighting applications. This ballast converts the electrical power to the correct voltage and current for the CFL bulbs. In this analysis, we will discuss the pros and cons of purchasing this ballast to help you make an informed decision.
II. Pros1. Energy Efficient: The i-42-EM-R-TBTS-Series ballast is designed to work with energy-efficient CFL bulbs, reducing energy consumption and lowering utility bills.
2. Compatibility: This ballast is compatible with a wide range of CFL bulbs, making it a versatile option for various emergency lighting applications.
3. Safety: The emergency ballast is designed to provide illumination during power outages, ensuring safety and security in case of emergencies.
4. Durable: The ballast is built to withstand harsh environments, making it suitable for use in industrial and commercial settings.
III. Cons1. Initial Cost: Compared to traditional incandescent bulbs and ballasts, the upfront cost of CFL bulbs and this ballast can be higher.
2. Bulb Replacement: CFL bulbs have a limited lifespan and require more frequent replacement compared to incandescent bulbs.
3. Compatibility with Dimming Systems: This ballast may not be compatible with dimming systems, which could limit its use in certain applications.
IV. ConclusionThe IOTA Engineering 643129387968 i-42-EM-R-TBTS-Series AC Fluorescent CFL Emergency Ballast 120/277V offers several advantages, including energy efficiency, compatibility, safety, and durability. However, it also comes with some disadvantages, such as a higher upfront cost, the need for more frequent bulb replacement, and potential incompatibility with dimming systems.
V. RecommendationIf you're looking for an energy-efficient, versatile, and durable emergency ballast for your lighting application, the IOTA Engineering 643129387968 i-42-EM-R-TBTS-Series AC Fluorescent CFL Emergency Ballast 120/277V is a solid choice. However, be aware of the potential downsides, including the higher initial cost and more frequent bulb replacement. Consider your specific application requirements and budget before making a purchase decision.
Details:
The Iota i-42-em-r-tbts-series-ac fluorescent cfl emergency ballast is a reliable and efficient lighting solution for emergency situations. Its sleek silver color adds a modern touch to its functionality. With a voltage range of 120v, this ballast features compact design with dimensions 2.50 in height , 9.50 length , and 1.75 width . Made by Iota engineering co.
specifications faclighting:
- brand: Iota Engineering Co
- part type: Ballast
- voltage: 120
- product height: 2.50
- color: Silver
- product length: 9.50
- product width: 1.75
- upc: 643129387968
shipping faclighting:
- transit: 5-11 days
- type: calculated
- carrier: usps
- service: usps ground advantage
- class: standard
returns faclighting:
- policy: no returns
general faclighting:
- category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting
offer faclighting:
- started: august 31, 2025
- availability: in stock
- in stock #: 2
- prices: $50.00–$78.00
- item condition:
- New
- Used
- best offers: true
- sold #: 20
- options: ship-to-home
seller faclighting:
- city: eaton, indiana
- rating: 99.5%
- # reviews: 5133
payments faclighting:
- wallet: google-pay
- credit card: discover
- other
Grouped With:
- ILBCP10A: DRIVER, Iota
- I-42-EM-R-TBTS: BALLAST, Iota Engineering
- I-162: LIGHTING, Iota
- ETS20-DR: LIGHTING CONTROL DEVICE, Iota
- ILB-CP07-A: DRIVER, Iota
- ILB-CP10-HE-R: DRIVER, Iota
- IIS-25-I: LIGHTING INVERTER MODULE, Iota Engineering
- ETS-20D: LIGHTING CONTROL DEVICE, Iota
- 040232560507: BATTERY INVERTER SYSTEM, Iota
- ILB-CP10-LC: DRIVER, Iota
- ILB-CP20-HE-HV-A: DRIVER, Iota

