Description
The G4 Capsule LED Bulb is a compact bi-pin lamp built to slot into the small G4 holders used in desk lamps, display cabinets, under-cabinet fittings and decorative low-voltage fixtures. It draws just 1.5W yet stands in for an old 11W capsule, putting out 105 lumens at a 4000K cool white tone. In US terms this is the bi-pin format buyers know simply as a capsule bulb. The wide 300 degree beam pushes light out evenly around the lamp rather than in a tight spot, so it suits the open-faced fittings G4 lamps typically sit in.
Because the output is modest and the spread is broad, this bulb is best thought of as accent and detail lighting rather than a room's main source. It works well picking out shelves and glass cabinet displays, lifting a reading or task lamp, or adding low-level light under kitchen wall units. The cool white tone keeps colours crisp and reads as a clean, neutral light, which fits work surfaces and display areas better than a warmer glow. It runs on 12V DC, so it pairs with the low-voltage transformer or driver these fittings already use, and should be kept to dry indoor positions only.
The lamp measures just 10mm across by 35mm long and weighs around 3g, with a transparent body and a G4 two-pin base that pushes straight into the holder. It is rated at 70 lm/W with a CRI of Ra 80 for honest colour, and is non-dimmable, so it should be run on a standard non-dimming circuit. Rated for 20,000 hours, it cuts the replacement and energy load of the halogen capsule it succeeds. We stock this G4 lamp alongside other low-voltage and screw-fit LED bulbs in the range.
Specification
| Cap / fitting |
G4 bi-pin |
| Bulb shape |
Capsule |
| Power |
1.5 W |
| Replaces |
11 W incandescent |
| Luminous flux |
105 lm |
| Efficiency |
70 lm/W |
| Colour temperature |
4000K (Cool White) |
| Colour rendering (CRI) |
Ra 80 |
| Dimmable |
No |
| Rated life |
20000 hours |
Downloads
Product Specification Sheet
Range Datasheet
Frequently Asked
What fitting does this bulb need?
It has a G4 bi-pin base, the small two-pin cap found in many low-voltage capsule fittings. The pins push directly into the holder. Check that your fixture takes a G4 lamp and runs at 12V DC before fitting.
What old bulb wattage does it replace?
The LED draws only 1.5W itself but gives the light of an old 11W halogen capsule, producing 105 lumens. You get the familiar brightness while using a fraction of the power, which also keeps the lamp running cooler over time.
Is this a warm or cool light?
It is a cool white at 4000K, a clean neutral tone rather than a warm yellow glow. With a CRI of Ra 80 it renders colours honestly, which suits display cabinets, task lamps and work surfaces where clear, true light matters.
Is this bulb dimmable?
No, this is a non-dimmable lamp and should be used on a standard non-dimming circuit. Running a non-dimmable bulb on a dimmer can cause flicker or shorten its life, so pair it with a normal switch.