Novelty diffraction glasses that turn any point of light into heart shapes, available in six frame colours and suitable for festivals, concerts, fireworks, hen dos and photography
Put these on at night and every light source around you, whether a street lamp, a stage light, a firework burst, a string of fairy lights or a car headlight, becomes a glowing heart. That is the entire premise and it works exactly as described. The diffraction lenses are engineered to bend light into a heart-shaped pattern rather than the prism-style starbursts you get from standard diffraction glasses.
The effect only activates when you look directly at a point of light in a darker environment. In daylight they look like a pair of fun, oversized heart-shaped sunglasses with tinted lenses. At night, or indoors under stage lighting, they turn ordinary scenes into something that photographs and videos extremely well. At £7.99, they are one of the more genuinely surprising impulse purchases in this price bracket.
See the Effect for Yourself
The before and after comparison below shows what happens when you look through these lenses at ordinary street lights. Every point of light transforms into a glowing heart shape. The effect scales with the brightness of the light source, which means stage lighting, fireworks and laser shows produce particularly vivid results.
Street lights become heart shapes when viewed through the diffraction lenses
Stage lighting and concert lights are where the effect is most dramatic
Fairy lights, fireworks and festive illuminations all produce the heart effect
Choose Your Colour
The diffraction effect is identical across all six colours. Your choice comes down to which frame suits your outfit, event or personal style.
Key Features at a Glance
How the Diffraction Effect Works
Diffraction glasses work by passing light through a microscopic grating pattern etched into or applied to the lens surface. When a point of light passes through this grating, the light bends and splits according to the pattern. Standard diffraction glasses create starburst or prism-style rainbow patterns. These lenses are specifically engineered so that the grating bends light into a heart outline rather than a starburst or line pattern.
The heart shape you see corresponds to the colour of the light source. White lights produce a white heart. Coloured stage lights produce a heart in that colour. Multicoloured fairy lights and fireworks produce hearts in each of their individual colours simultaneously across your field of vision, which is why these glasses are particularly popular at Christmas light events and firework shows.
The effect requires a dark or dimly lit environment and a direct point of light to work. Diffuse ambient lighting, such as a well-lit room during the day, does not produce visible hearts. The brighter and more focused the light source, and the darker the surrounding environment, the more vivid the effect. Stage lighting at concerts and laser shows at raves are where the effect is at its most dramatic.
Getting the best effect: Stand facing the light source directly and look at it head-on. The heart shape is most vivid when you look straight at a single point of light rather than across a wide field. For photography, have someone hold a phone torch or a single LED light at arm’s length in front of you and photograph the heart shape you see through the lens.
Product Specifications
| Condition | New |
| Frame Material | Durable plastic |
| Lens Material | High-quality resin with diffraction grating |
| Frame Shape | Heart-shaped |
| Lens Finish | Grey tinted with diffraction effect |
| Size | 14 x 6 x 13 cm |
| Available Colours | Red, blue, black, white, pink and yellow |
| Effect Type | Heart diffraction – turns point light sources into heart shapes |
| Effect Activation | Active in dark or low-light environments with direct point light sources |
| Suitable For | Adults and older children. Not suitable for young children. |
| Occasions | Festivals, concerts, raves, fireworks, Christmas lights, hen dos, Valentine’s events, photoshoots |
| Packaging | Single pair per order |
Who These Glasses Are For
The primary buyer is someone heading to an event at night where there will be significant light, whether that is a music festival, a concert, a fireworks display, a laser show or a New Year’s Eve celebration. At these events, wearing the glasses occasionally to see the heart effect and then slipping them back into a bag is exactly how they tend to be used.
They are also an extremely popular prop for content creation on social media. Pointing a phone camera at a light source through the lenses, or filming through the lens in a low-light setting, produces the heart effect on camera as well as to the naked eye. This makes them a popular purchase for TikTok and Instagram creators who want a visually distinctive and low-cost way to create engaging night content.
As a gift they work particularly well for Valentine’s Day, hen dos, bachelorette parties, and birthday parties with a festival or nightlife theme. Buying multiple pairs in the same or different colours for a group event, such as a hen night where the group will be attending a club or outdoor light installation, is a popular use case. At £7.99 per pair, buying several is straightforward.
They also have a surprising amount of traction as a Christmas and winter gift. Walking through Christmas light displays, watching fireworks, or attending outdoor winter markets while wearing these glasses turns every festive light into a heart, which suits the seasonal context well and makes for genuinely engaging photographs.
Where to Use Them
- Music festivals – stage lighting, LED rigs and laser shows are ideal environments for the heart effect to be at its most vivid
- Concerts and live events – any venue with focused stage or spot lighting produces a clear heart pattern through the lenses
- Fireworks displays – every firework burst becomes a cluster of hearts, each in the colour of the individual firework
- Christmas light events and markets – fairy lights, LED displays and festive illuminations are perfect light sources for the heart effect
- Hen dos and bachelorette parties – a popular group accessory for nights out, particularly in clubs and bar venues with focused lighting
- Valentine’s events – the obvious thematic match, particularly for evening restaurant or bar outings
- Laser shows and planetariums – laser dots and point projections produce particularly clean heart shapes
- Photography and content creation – shooting through the lenses or capturing someone wearing them against a lit background produces shareable content
- New Year’s Eve celebrations – fireworks, festive lights and nightclub lighting all activate the effect simultaneously
Frequently Asked Questions
Do these actually work, or is it just a novelty?
They genuinely work. The diffraction lenses are engineered with a grating pattern that bends light specifically into a heart shape. When you look directly at any point of light source in a dark or dim environment, such as a street lamp, stage light, fairy light, firework or torch, you see a distinct heart shape around that light source. The effect is real optics, not a printed pattern on the lens.
Do they work in daylight?
No. The diffraction effect requires a focused point of light against a dark or dim background to be visible. In normal daylight, the lenses look and function like lightly tinted fashion sunglasses. The heart effect becomes visible as soon as you are in a low-light environment with direct light sources, such as a venue with stage lighting, a street at night, or a room with candles or fairy lights.
Does the effect show up on camera or phone video?
Yes. If you photograph or film through the lenses towards a light source in a dark environment, the heart effect is visible in the resulting photo or video just as it is to the naked eye. This is one of the reasons they are popular for social media content creation. For the clearest result, film in a dark room pointing towards a single bright light source such as a phone torch or LED lamp.
What colours are available?
The glasses are available in six frame colours: red, blue, black, white, pink and yellow. The diffraction effect in the lenses is identical across all six colours. Your choice of frame colour makes no difference to the light effect you see through the lenses.
Are these suitable for children?
These glasses are intended for adults and older children. They are not suitable for young children due to the small parts risk from the lens and frame construction. For older children and teenagers attending events such as bonfire night fireworks or Christmas light displays, they are generally appropriate. Adult supervision is recommended for younger users.
Do they fit most face sizes?
The frame measures 14 x 6 x 13 cm, which fits most adult face shapes and sizes comfortably. The arms are standard length and sit neatly on most ear positions. They are designed to be worn as a novelty and fashion accessory rather than as precise optical correction, so the fit is intentionally relaxed rather than tailored.
Can I buy multiple pairs for a group event?
Yes. Multiple pairs can be ordered in the same or different frame colours. Buying different colours for members of a hen party, festival group or event team is a popular option. Each pair is sold individually at £7.99, so ordering several is straightforward. Free UK delivery applies on orders over £13, so two pairs in one order qualifies for free shipping.
Are these good for fireworks?
Yes. Firework displays are one of the best environments for these glasses. Each firework burst contains multiple individual points of light, and each produces its own heart shape in the colour of that firework. A multi-burst firework display therefore creates a sky full of coloured hearts simultaneously, which is genuinely impressive. Bonfire Night, New Year’s Eve and large outdoor firework events are ideal occasions for these.
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Browse more novelty and fun gift ideas for festivals, parties and special occasions
M***w –
Very fast shipping. Nice and do their function, quality-price well.
A*** –
They actually like work took like a month to come and there worth the price fr
v***n –
Good product, indulge the very thing
D***o –
this is the second time I bought this item and I love them
Customer –
Item as described. Not made for sun protection.
P***N –
Honestly cause of just buy another dildo but this was cute it has to be like a led light for the hearts to appear but that’s it.
a***o –
super cool
I***s –
It’s very beautiful 😍 At first, I didn’t understand how to see the effect, but now I see it hehe. 😅 🤭
a***r –
Looks like on pictures. But the light source should be bright enough
N***o –
The hearts look very good, from a distance not so much but up close they look perfect. They are sunglasses with the paper that makes the hearts visible and a piece of plastic that stops that paper, but they seemed perfect to me.
Customer –
awesome, but I feel sick when I walk in them for a long time, too dark, delivery to Kyiv 10 days.
w***r –
Looks nice fits well
c***i –
They work!!! The lights look gorgeous with them, I can’t wait to use them at night! 🫶 🫶
P***a –
They look humorous, cute, I haven’t tried it yet, but they show the pores perfectly, it meets the description… ✌🏼 🍃 🤙🏻 ✌🏼 🎓 ✌🏼
Customer –
It really looks like a heart! Amazing! This is incredible for this price. All my friends and brothers said it’s amazing! Beautiful!
E***i –
Works as intended
M***e –
The best heart shaped glasses for partying!!!! !
a***a –
Perfecttt
Customer –
Obviously, these glasses are not for much use, just to have a little fun with the effect they create; surely continued use could damage your eyesight. I recommend them for cosplay or for hanging out with the lights.
Customer –
It arrived quickly, in perfect condition, and it does work 😭😭
B***a –
It worksss!! !