Description
The Knightsbridge G9LED18 is a 3W LED capsule bulb with a G9 bi-pin base, delivering 320 lumens of 2700K warm white light. The bulb replaces halogen G9 capsules of 25-28W equivalent output while running at a fraction of the energy draw on 230V mains.
Designed for use in decorative wall lights, under-cabinet kitchen lighting, table lamps and ceiling fittings that take G9 bases, the bulb fits directly into existing G9 sockets without rewiring or adapter plates. The 270-degree beam angle provides wide light spread across the fitting, similar to the omnidirectional output of the halogen bulbs it replaces. The compact 16mm diameter and 50mm height match standard G9 capsule dimensions, so the bulb sits within most shade apertures without protruding.
The bulb housing combines a white ceramic base with a clear polycarbonate outer capsule, exposing the LED array inside. The ceramic provides thermal management to keep the LED junction temperature stable across the rated 25,000-hour L70B50 lifespan. The clear capsule allows the warm 2700K light to cast without colour shift, maintaining the tone expected from traditional incandescent and halogen sources. The bulb carries an IP20 rating for dry indoor use and a CRI greater than 80, rendering colours naturally in residential and hospitality settings.
This bulb is non-dimmable. Pairing it with a dimmer switch may cause flicker, premature failure or damage to the driver circuit. For dimmable G9 LED options, see other products in the Knightsbridge LED bulb range at Niori.
Specification
| Diameter |
16 mm |
| Height |
50 mm |
| Construction |
Ceramic |
| Construction 2 |
& polycarbonate |
| Finish |
White |
| IP Rating |
IP20 |
| Primary Voltage |
230V 50Hz |
| Diffuser |
Clear |
| Lamp Technology |
LED |
| Lamp Base |
G9 |
| Dimmable |
No |
| L70B50 |
25000 |
| Energy Rating (Class) post 2021 SLR |
E |
| Beam Angle |
270 |
| CCT |
2700 K |
| Light Colour |
Warm White |
| Lumens |
320 lm |
| Wattage |
3 |
| Efficacy |
111.49 lm/W |
| CRI |
>80 |
| Warranty |
3 |
Downloads
Product Specification Sheet
Frequently Asked
Is this bulb dimmable?
No. The G9LED18 is non-dimmable. Using it with a dimmer switch may cause flicker, buzzing or premature failure. If you need a dimmable G9 LED, check other Knightsbridge options in the LED bulb range at Niori.
What halogen wattage does this replace?
This 3W LED bulb delivers 320 lumens, which is comparable to a 25-28W halogen G9 capsule. The actual brightness depends on the halogen model being replaced, but most users find this a like-for-like replacement in terms of light output.
How long does it last?
The bulb is rated at 25,000 hours L70B50, meaning that after 25,000 hours of use, at least 50% of a batch will still be producing 70% or more of their original lumen output. At typical residential usage of 3-4 hours per day, this translates to approximately 17-20 years of service.
Can it be used in enclosed fittings?
The bulb is rated IP20 for dry indoor use. It can be used in enclosed fittings provided there is adequate ventilation to prevent heat build-up. Fully sealed glass or metal enclosures with no air circulation may reduce the bulb's lifespan.