The UniBulb Halogen R7S 78mm Linear 2250lm 120W 2900K (Warm White) Dimmable - Pack of 4 offers a p...The UniBulb Halogen R7S 78mm Linear 2250lm 120W 2900K (Warm White) Dimmable - Pack of 4 offers a powerful and versatile lighting solution for both indoor and outdoor applications. Designed to deliver bright, warm white light, these halogen bulbs combine performance, efficiency, and durability, making them ideal for various lighting needs. Each bulb emits an impressive 2250 lumens. Length - 78mm. Warm White Glow (2900K). Dimmable Functionality. Energy-Efficient Performance. Durable and Long-Lasting. 120W. Fully sealed and boxed in original retail packaging. Sourced only from authorised UK distributors. Covered by full manufacturer’s warranty. VAT receipt included with every order. Fitment also known as R7S J28.
This guide is for users seeking a bright, warm, and dimmable lighting solution for various applications. The UniBulb Halogen R7S 78mm bulbs offer a powerful 2250 lumens output and a cozy 2900K warm white glow, suitable for both indoor and outdoor fixtures. While they provide excellent brightness and dimming capabilities, their 120W power consumption is a factor to consider for energy efficiency.
All features
Model Part Number
U5160-2
Brand
UniBulb
Extended Product Information
FAQs
What is the length of these R7S bulbs?
These UniBulb halogen bulbs are 78mm in length and are designed for R7S J28 type fittings.
Can I use these bulbs outdoors?
Yes, these bulbs are suitable for both indoor and outdoor applications, provided they are installed in appropriate weatherproof fixtures.
Are these bulbs dimmable?
Yes, the UniBulb Halogen R7S bulbs are fully dimmable. Ensure you are using them with a compatible dimmer switch.
What color temperature is the light?
The light color temperature is 2900K, which is considered warm white, providing a cozy and inviting illumination.
How many lumens does each bulb produce?
Each bulb produces approximately 2250 lumens, offering a bright light output.
What is the wattage of each bulb?
Each bulb has a wattage of 120W.
What is the warranty for these bulbs?
These bulbs are covered by the full manufacturer’s warranty.
Troubleshooting
Bulb does not turn on
Ensure the power is switched on, the bulb is correctly seated in the R7S socket, and the fixture is receiving power. Try the bulb in another compatible fixture to rule out fixture issues.
Flickering light
Check for a loose connection at the socket. If connected to a dimmer, ensure the dimmer is compatible and properly adjusted, or try bypassing the dimmer to test.
Short bulb lifespan
Avoid touching the glass with bare hands during installation. Ensure the bulb is not overheating due to poor ventilation in the fixture. Check that the fixture's wattage rating is not exceeded.
Bulb brightness seems low
Confirm the dimmer is set to full brightness. Check that the bulb is the correct wattage and type for the fixture. Ensure the bulb is clean.
Pros and Cons
Pros
Provides very bright illumination (2250 lumens).
Creates a pleasant warm white ambiance (2900K).
Full dimming control for mood setting and energy saving.
Standard 78mm R7S fitment for broad compatibility.
Durable design ensures a good lifespan.
Comes in a practical 4-pack.
Cons
Higher wattage (120W) can lead to increased energy consumption compared to LED alternatives.
Halogen bulbs generate heat, which may be a consideration in enclosed fixtures.
Shorter lifespan than modern LED bulbs.
Fragile glass construction requires careful handling during installation.
Setup, Compatibility & Care
Setup:
Ensure Power is Off: Before replacing any bulb, always turn off the power supply at the switch or circuit breaker.
Allow Cooling: If replacing a bulb that was recently in use, allow it to cool down completely before touching.
Handle with Care: Use a clean cloth or the original packaging to handle the new bulb. Avoid touching the glass directly with bare hands, as oils can reduce the bulb's lifespan and cause hot spots.
Insert Bulb: Carefully insert the R7S 78mm bulb into the compatible fixture, ensuring it is securely seated.
Restore Power: Turn the power back on and test the bulb.
Compatibility:
Socket Type: Compatible with R7S J28 fittings. Verify your fixture uses this specific type.
Fixture Type: Suitable for most fixtures designed for R7S 78mm bulbs, including indoor and outdoor applications. Check fixture specifications for maximum wattage and bulb type.
Dimmers: Fully compatible with standard dimmers designed for incandescent and halogen loads. Ensure your dimmer switch is rated for the bulb's wattage.
Care:
Cleaning: If cleaning is required, ensure the power is off and the bulb is cool. Gently wipe the glass with a dry or slightly damp soft cloth. Do not use abrasive cleaners.
Ventilation: Ensure fixtures have adequate ventilation, as halogen bulbs do generate heat.