Description
A golf ball bulb is the small round lamp that sits between a candle and a full sized GLS, and this one runs at 4.2W to give 470 lumens. The cap is E27, the larger of the two screw fittings used in the UK, so it goes straight into any ES lampholder. The light is warm white at 2700K, the familiar soft yellow tone of an old filament bulb rather than the crisp white of an office. Energizer prints a 40W replacement figure on the pack, which is the incandescent golf bulb most people will be taking out.
Golf bulbs earn their place where the shade is small or the lamp is on show. Think bedside lamps with narrow shades, wall lights, a three arm pendant over a dining table, or a mirror surround where several bulbs sit in a row and a full sized bulb would crowd them. The bulb is white rather than clear, so you see a soft glow rather than a bright point when it sits at eye level. At 2700K it works well with warm paint colours, wood and brass, and it mixes without clashing beside other warm white lamps in the same room.
It is dimmable, so it can go on a circuit with a dimmer switch. LED dimming depends as much on the switch as the bulb: older rotary dimmers built for filament loads often need a minimum wattage far above 4.2W, so if you are fitting several of these check that your dimmer is rated for LED or trailing edge. The energy rating is E. The pack prints a 15 year lifespan, based on 15,000 hours of use. Each box holds one bulb, and the minimum order is 12, sold in multiples of 12. This sits alongside our wider range of LED bulbs in B15 (SBC) and GU10 fittings, in warm white and cool white.
Specification
| Fitting |
E27 (ES) screw cap |
| Shape |
Golf |
| Technology |
LED |
| Wattage |
4.2W |
| Brightness |
470lm |
| Equivalent |
40W, as stated on the pack |
| Colour temperature |
2700K warm white |
| Dimmable |
Yes |
| Energy rating |
E |
| Lifespan as printed |
15 year lifespan, based on 15,000 hours, as printed on the pack |
| Sold as |
Box of 1 bulb |
| Minimum order |
12, sold in multiples of 12 |
Frequently Asked
Will this fit my lamp?
It takes an E27 screw cap, also called ES. Unscrew the old bulb and check the base: a threaded screw roughly 27mm across is E27, while a smaller thread is E14 and two push and twist pins are a bayonet cap.
How bright is 4.2W against the bulb I am taking out?
Brightness is the lumen figure, not the watts. At 470 lumens it stands in for the 40W incandescent golf bulb named on the pack, drawing 4.2W to do it.
What sort of dimmer switch does it need?
Use a dimmer rated for LED loads, usually a trailing edge type. An older dimmer made for filament bulbs may have a minimum load well above the few watts a short run of these draws, which shows up as flicker or a narrow dimming range.
Is the light warm or cool in tone?
Warm at 2700K, the soft yellow white people associate with old filament bulbs. Cool white sits nearer 4000K and daylight nearer 6500K, so those look noticeably bluer beside this one.
Does the manufacturer state an IP rating?
No IP figure is given in the specification or printed on the retail pack, so we state none and claim none for it.
How many do I receive, and is there a minimum order?
Each box contains one bulb. The minimum order on this listing is 12 boxes, sold in multiples of 12, so you receive 12 bulbs at a time.