DIY Halloween Lights: Spooky Indoor Lighting with Old Phones
Short answer: The easiest Halloween lights indoor don't need string lights or candles: stick a color filter on the flashlight LED of an old phone, stand the phone in the open, and aim the light at a light-colored wall or ceiling. Flame Red turns the hallway into a horror corridor, Emerald Green makes the window a poison lab, Mystic Violet sets up a ghost corner, and Solar Orange gives you the pumpkin look. Add black cardstock cut-outs in front for silhouettes and glowing pumpkin faces.
Why old phones make great DIY Halloween lights
Plenty of drawers hide a smartphone that still works (more ideas: uses for old phones). The flashlight LED is bright, and the phone fits almost anywhere: shelf, windowsill, sideboard.
A Flashy is a 7 mm stick-on color filter for that LED. No app, no extra battery, no pairing. Here's how:
- Clean the LED.
- Peel the Flashy off the carrier card.
- Stick it on the center of the LED.
- Turn the flashlight on and aim it at a wall or ceiling.
The one rule that matters: the phone always stands free and in the open. Never put it inside a pumpkin or a box, and never cover it.
Halloween lights indoor: 6 DIY ideas
1. Glowing pumpkin face on the wall (Solar Orange)
Cut a pumpkin face out of black cardstock: triangle eyes, nose, zigzag mouth. Stand the card upright (leaning against a book, for example) a little way in front of a phone with Solar Orange. The orange light shines through the holes onto the wall – a pumpkin face made of light. Play with the distance until you like the outline. Got a real carved pumpkin on the table? For light inside it, use an LED tea light; the phone stays outside and washes the wall behind it in orange. For warm light without a flame, see flameless candle light with an old phone.
2. Lit-up window silhouettes (Emerald Green or Mystic Violet)
Tape bats, ghosts or a cat cut from black cardstock to the inside of the window. Put the phone on the windowsill or a shelf next to it and aim it at the ceiling or a wall in the room. From outside, you see dark silhouettes against a green or violet glow – Halloween window decorations with lights, no tangle of cables.
3. Horror hallway and entrance (Flame Red)
One or two phones with Flame Red on a sideboard or shoe cabinet, light aimed at the ceiling: your hallway greets guests in red. If there's a glass door or a window next to the front door, stand a phone just inside it. To be honest: phones aren't outdoor lights. For the yard, steps or rainy nights, use lighting made for outdoor use.
4. Ghost lights (Mystic Violet)
Hang a ghost made from an old white sheet or cheesecloth on a coat rack or ceiling hook. Lay the phone in the open on the floor next to it and shine it upward at the fabric and the wall. Violet light from below turns a plain sheet into a ghostly figure.
5. Poison lab on the shelf (Emerald Green)
Fake spiders, old books and spooky labels on a shelf, the phone with Emerald Green standing free in front, aimed at the back wall. A green backdrop fits a witch's kitchen or a zombie look.
6. Four rooms, four colors
Hallway in Flame Red, living room in Mystic Violet, kitchen in Emerald Green, dinner table in Solar Orange: every room gets its own spooky mood. One phone against a light wall is usually enough per room. For the party itself, check out Halloween party ideas for teens.
DIY party tip: Flashy + strobe app + Bluetooth speaker
Your decorations become a party in minutes – in the living room, the basement or the park:
- Search the App Store or Google Play for a strobe light app. Ideally pick one that lets you adjust the flash frequency.
- Stick a Flashy on the LED, e.g. Flame Red or Emerald Green.
- Start the app and tune the frequency to the room and the music: slow for a thunderstorm flicker, faster for the dance floor.
- Connect a Bluetooth speaker, start a spooky playlist, done.
Important epilepsy warning: Flashing and strobe light can trigger seizures in people with photosensitive epilepsy. Tell all guests in advance, use strobe only briefly, and switch to steady light right away if anyone feels unwell. Always aim the light at a wall or ceiling, never into anyone's eyes.
Which color fits which spooky look?
| Color | Best for | Available in |
|---|---|---|
| Flame Red | Horror hallway, entrance | Sunset Lights, Friends Pack |
| Emerald Green | Poison lab, zombie window | Friends Pack |
| Mystic Violet | Ghosts, witch zone | Fairy Lights, Friends Pack |
| Solar Orange | Pumpkin face, dinner table | Sunset Lights |
For pumpkin vibes and horror red, grab Sunset Lights (Flame Red, Solar Orange, Royal Gold). Mystic Violet comes in Fairy Lights (Power Pink, Mystic Violet, Sky Breeze in turquoise). Want several phones in one color, e.g. Emerald Green for the whole window? The Friends Pack (five Flashys in one color) is the right pick. All packs at a glance: phone flashlight color filters.
A Flashy fits all smartphones, iPhone or Android. If your phone has a large LED ring (about 3 cm), stick on several Flashys – every pack contains several filters. After Halloween, Flashys peel off without residue.
Quick safety note: Never look straight into the LED and never shine it into anyone's eyes. Making Halloween lights with kids? Kids can cut out the cardstock, adults stick on the Flashys: they are small 7 mm parts – keep them out of reach of small children. Turn the flashlight off when nobody is in the room.
FAQ
How do I make DIY Halloween lights? Stick a color filter on the flashlight LED of an old phone and aim the light at a wall or ceiling. Put black cardstock cut-outs in front to create bats, ghosts or pumpkin faces.
What colors work best for Halloween lights indoor? The classics are red (Flame Red), green (Emerald Green), violet (Mystic Violet) and orange (Solar Orange). One color per room usually looks more cohesive than a rainbow mix.
Can I put my phone inside a carved pumpkin? No. The phone should always stand free and in the open, never inside a pumpkin or a box and never covered. For light inside the pumpkin, use an LED tea light and let the phone light up the wall behind it.
Does this work with any phone? Yes. A Flashy fits all smartphones, iPhone and Android. If your phone has a large LED ring, stick on several Flashys.
Will the filter leave residue after Halloween? No. Flashys peel off without residue.
How do I make a strobe light with my phone? Download a strobe light app from the App Store or Google Play, ideally one with adjustable frequency, and stick a Flashy on the LED. Important: warn your guests first, because flashing light can trigger seizures in people with photosensitive epilepsy.
Where can I get Flashys? Available directly in the shop at flashyhue.com. More answers in our FAQ.
Find your spooky color: Sunset Lights (Flame Red, Solar Orange, Royal Gold) · Fairy Lights (Power Pink, Mystic Violet, Sky Breeze) · Friends Pack (5 Flashys in one color, e.g. Emerald Green or Flame Red) · Mystery Light (surprise mix)
Available directly in the shop. Free shipping on orders from €10. Germany below that: €1.80. We currently deliver only within Germany.. Shipped from Germany: about 1–5 working days. 14-day right of withdrawal. FlashyHue is a brand from Germany – designed in Stuttgart, born in Namibia. Centropy Lights UG (haftungsbeschränkt).