Vintage Christmas lights recreate the sets that lit British front rooms in the seventies, eighties and nineties: petal and tulip shades, little lanterns, candle bulbs, pine cones and big coloured bulbs strung well apart. The retro label changes more than the shape, though, because it often decides how the set is wired, how warm the light looks and whether you can swap a dead bulb.
Two quite different things are sold under the same name. Some sets are faithful remakes with real incandescent bulbs; others put LEDs inside old-fashioned shades. They can look almost identical on the box and behave very differently on the tree.
Ask anyone why old Christmas lights looked better and you will usually hear the same answer: warmth. A glowing filament gives off a soft, slightly orange light with a smooth spectrum, and coloured glass or plastic shades filter it into deep, rich tones. Early LED strings did the opposite. Their whites were cold or oddly yellowish and their colours looked flat, which is why many people went back to the attic for the old box.
Today's better retro LEDs close most of that gap. Look for extra warm white around 2200–2700 K, filament-style LEDs that imitate a glowing wire, and coloured caps or tinted shades rather than colour-changing RGB chips, which still give a slightly screen-like tint.
Traditional mains sets are wired in series. The mains voltage is shared between all the bulbs, so each one runs at only a fraction of it and the bulbs must all match. When one fails or works loose, the whole string goes dark, and finding the culprit means swapping bulbs one at a time. Each bulb also uses a couple of watts and the shades get warm.
LED versions run from a plug-in transformer at a low voltage, typically 24–31 V, use only a few watts for the whole string and stay cool. One dead LED rarely takes out the rest. The trade-off is that the bulbs are usually sealed in, so a damaged string normally gets replaced rather than repaired.
Retro bulbs are larger and spaced further apart than fairy lights, so you need fewer of them. These are rough starting points for a well-lit tree:
| Tree height | Large retro bulbs or shades | Smaller retro LEDs (cones, lanterns) |
|---|---|---|
| 4–5 ft (120–150 cm) | 16–24 | 40–60 |
| 6 ft (180 cm) | 24–40 | 80–120 |
| 7 ft (210 cm) | 32–48 | 120–160 |
| 8 ft and above (240 cm+) | 48 or more | 160 or more |
Check the lead length too. Older-style sets often have a short lead between plug and first bulb, while LED sets tend to give you several metres, which makes it easier to stand the tree in a bay window away from the socket.
Most traditional bulb sets are designed for indoor use only, usually rated IP20. For a porch, a front garden tree or a balcony rail, choose a set rated at least IP44 with a transformer that is itself suitable for outdoor use, and plug it into an outdoor socket or a weatherproof enclosure. A few more habits are worth keeping:
In the UK the decade is remembered for multicoloured sets with plastic petal or tulip shades, lanterns and faceted ‘crystal’ covers, plus the first low-voltage sets with flashing and chasing effects. Many of today's retro sets borrow those shapes.
Mostly because of the incandescent filament: warmer light, smoother colour and a gentle fade when switched off. Warm white filament-style LEDs come very close, while bright RGB LEDs do not.
Only if the set is rated for it. Look for IP44 or higher on both the string and the transformer. Indoor bulb sets should stay indoors.
Choose incandescent for authenticity and repairability, LED for low running costs, cool shades and peace of mind with children and pets around.
For many traditional sets, yes. Match the voltage printed on the box or the original bulb, not just the shape, and replace like with like.
Clip candle bulbs upright at the tips of the branches. Wind cones and globes in a loose spiral from the top down and tuck a few deeper in so the tree glows from inside.
More on choosing Christmas lights of every kind, from fine fairy lights to curtain lights: Christmas lights. If the garden is next, read more about outdoor Christmas lights and the protection ratings they need.
