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How the bottle lamp works
The bottle is mainly a diffuser and reservoir for the lamp assembly. The electrical system is a standalone solar photovoltaic (SPV) light with four functional blocks:
- Solar panel: converts sunlight into charging power.
- Charger and protection: regulates single-cell Li-ion charging and helps prevent unsafe overcharge, over-discharge or fault conditions.
- Rechargeable battery: stores energy for operation after sunset.
- LED and control circuit: produces light at selectable brightness levels.
The custom enclosure holds the panel, PCB, switch, LED and battery terminals at the bottle cap. Open Green Energy makes enclosure STL files available for a 3D-printed build.
Choose one circuit revision before buying parts
The documented versions are not interchangeable bills of materials. The Make: version uses a TP4056 single-cell Li-ion charger module with an LED-driver arrangement. Later creator materials identify an LP4060B5F charger and AP6685 battery-protection components on a revised design. Match the charger, protection parts, PCB and schematic to the same revision.
#1 Best Overall
- Unique Bottle Lamp Design: Featuring an innovative upcycled bottle lamp structure, it delivers artistic accent lighting to fit glass bottles, enabling users to repurpose everyday items into striking decor that enriches both modern and traditional settings beautifully
- Perforated Metal Shade: The wireless bottle lamp incorporates a perforated metal shade that generates hollow shadow projections, resulting in a warm ambient glow and layered light patterns, ideal for adding charm to any room or patio setting
- Monocrystalline Panel Durability: The bottle lamps incorporate advanced solar technology through monocrystalline panels, enabling efficient energy conversion for consistent wire-free outdoor use, perfect for decorating tables or pathways during nighttime gatherings
- Relaxing Ambient Glow: Crafted to produce soft warm lighting, the wine bottle lampshade light spreads even illumination throughout your space, fostering a calming night ambiance suited for unwinding after a long day
- Widely Used: With an iron build and all-weather structure, the wine bottle lamp supports multiple placement options. It prospers both indoors and outdoors, providing a trusty lighting solution that complements patios, dining rooms, or bedside tables effortlessly
| Revision or approach | Documented charging/protection hardware | What to do |
|---|---|---|
| Make: design | TP4056 single-cell Li-ion charger module; LED driver described in the guide | Use the Make: schematic and its terminal labeling. |
| Later creator V2.0 materials | LP4060B5F charger and AP6685 battery protection | Use the V2.0 PCB and component list; do not substitute the TP4056 module without redesigning the circuit. |
| Ready-made solar garden-light top | Depends on the product | Only use it if its panel, battery chemistry, charging voltage and LED output are compatible; this is an alternative implementation, not a tested equivalent. |
Parts for the custom build
The project’s parts list includes a small solar panel, one 14500 Li-ion cell, straw-hat LED, charger and protection components, resistors, diode, switch, PCB, battery terminals, JST connectors, heat-shrink tubing and wire. A soldering iron, nippers and a hot-glue gun are listed tools. A fabricated PCB or assembled board can reduce hand wiring, but availability should be checked when ordering.
Build procedure
- Print or prepare the enclosure. Confirm that the panel, LED, switch, PCB and battery terminals fit the chosen enclosure revision. Dry-fit everything before soldering.
- Install the panel. Seat the panel in the top opening and identify its positive and negative pads. Seal it from the inside after confirming the fit; adhesive must not shade the active cell.
- Install battery terminals. Fit the terminals for the 14500 cell and insulate exposed joints with heat-shrink. Never insert the cell until the circuit has passed a polarity check.
- Mount the LED. Place the straw-hat LED in its opening, observe the LED’s anode/cathode markings, and seal around the bezel and wires.
- Fit the switch and PCB. Secure the switch, charger/protection board and any connectors so vibration cannot pull solder joints apart.
- Wire by labels, not by wire color. Connect panel positive/negative, battery positive/negative and LED terminals exactly as shown for the selected schematic. Check continuity and polarity with a multimeter before connecting the battery.
- Close and seal the enclosure. Apply epoxy at enclosure joints and around cable exits where the guide specifies. Hot glue can hold parts during assembly but should not be treated as the sole weather seal.
- Prepare the bottle. Thoroughly clean and dry a soft-drink bottle. The guide describes adding water and a few drops of chlorine to discourage algae; keep the liquid away from the electronics and follow local chemical-handling guidance.
- Attach the enclosure to the cap. Make the cap-to-enclosure joint mechanically secure, then inspect for sharp edges, pinched wires and movement of the battery.
- Test charging and lighting. Expose the panel to strong sun, confirm charging behavior, then test low, medium and high brightness. Stop immediately if the cell, board or wiring becomes unusually hot, swells or smells abnormal.
Solar-panel sizing: why this design charges slowly
Open Green Energy’s 2022 project log estimates a panel target from its own assumptions: 2.75 Wh of LED energy divided by 90% assumed battery efficiency gives 3.05 Wh, and dividing that by 4.5 peak-sun hours gives 0.679 W, rounded to 0.68 W.
Rank #2
- Portable Wireless Lamp: A must-have for decoration collection that transforms your favorite bottle into an ornament in your life
- Rechargeable Bottle Light: This cordless table lamp features high-quality metal wine stoppers and harmless acrylic lamp shades with a built-in LED light and power supply system, includes USB-C port and charging cable for easy charging
- Versatile Table Lamps: The bottle lamp can be used for reading and creating an atmosphere in bedrooms, living rooms, bars, restaurants, terraces, and other spaces, suitable for both homes and public places
- Battery Operated Lamp: Conical design allows you to freely pick different bottles as bases, like beer, wine, and whiskey bottles, features universal USB charging making it compatible with any USB port including laptops, computers, power banks, wall outlets, or power sockets
- Touch Dimmable Control: Simply touch the dimmable wireless bottle light to create an atmosphere for any occasion, powered by high-capacity batteries with 2.5 hours of charging time and 12 hours of illumination
The enclosure provides only a 60 × 60 mm panel footprint. The log says panels suitable for a 3.7 V battery in that size commonly delivered about 0.4–0.45 W, so the designer selected a Sunpower cell rated at 0.55 W. Those are project figures, not a universal sizing rule: shade, angle, season, temperature, charger losses and battery state all change the result.
The creator reports that the mounted panel was insufficient for a larger-capacity battery and added USB-C charging as an alternate input. If you increase battery capacity, expect longer charging unless you also increase panel area or provide another charging source.
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Rank #3
- Solar Powered: The wine bottle lights are energy saving and environmentally friendly. They do not need batteries or external wires, and are powered by a solar panel on the top.
- Easy To Use: The switch is easy to slide to the 'ON' position. The solar cork lights charge in the sun for 5-6 hours and will light up for 6-8 hours.
- Durable And Waterproof: The copper wires are bendable and flexible, allowing you to make any shape you like. The wire lights are waterproof, but the cork is not. The package does not include a bottle.
- Compatible With Most Bottles: The cork has a universal size that fits various bottles, such as beer bottles, glass bottles, and soda bottles. The cork top is 2.1 inches in diameter and the cork bottom is 0.4 inches in diameter.
- DIY Application: The ultra thin copper wire is easy to bend and shape. You can design any shape you like. Ideal for parties, barbecues, weddings, Halloween, Christmas, gardens, indoor and outdoor decoration.
Reported runtime—and what it does not promise
In the creator’s stated test setup, the prototype’s backup times were:
| Brightness | Reported runtime | Interpretation |
|---|---|---|
| Low | 26 hours | Longest operation; lowest light output. |
| Medium | 12 hours | Intermediate brightness and battery demand. |
| High | 7 hours | Highest demand and shortest operation. |
These numbers come from Open Green Energy’s 2022 project log and one prototype. They are not guaranteed runtimes for another battery, panel, LED, brightness setting, weather pattern or circuit revision. Measure your own lamp after a full charge if runtime matters.
Rank #4
- [ Unique Bottle Lamps ]: This wireless bottle lamp transforms wine, whiskey, or beer bottles into a unique lighting lamp. Designed as a lamp for bottle use, each one is with a bottle stopper which fits most standard necks. A unique home decor and bar addition.
- [ Touch Dimmable with 3 Light Modes ]: Easily control your bottle lamp with a simple touch on the lamp top. Just a slight press, the light can be switched among 3000K warm, 4000K natural and 6000K white, which will create the perfect mood for dinners, relaxing nights, or parties.
- [ Rechargeable and Portable for Indoor and Outdoor Use ]: Built-in rechargeable battery with USB-C charging without cords and free worry of battery changing—clean, simple, and hassle-free.
- [ Durable and Waterproof ]: The shade is crafted from high-quality metal, this wireless bottle lamp is built to last. With IP54 water resistance, it handles splashes and light rain with ease—perfect for patios, outdoor dinners, and bar use without worry.
- [ Housewarming Gifts ]: With a sleek metal finish, this bottle lamps for liquor bottles setup adds a premium touch to any decor. A creative and thoughtful gift for wine lovers, friends, and family—perfect for any occasion.
Weather resistance and construction-site use
Epoxy around joints and sealing the panel and LED can reduce water entry, but the documented steps establish no certified waterproof or ingress-protection rating. Keep the lamp out of standing water, driving rain and locations where a damaged bottle could expose live wiring. For a construction setting, protect the enclosure from impact, abrasive dust and heat, and inspect seals and cable strain relief regularly.
Quick Recap
Best Value
- Smart Touch Dimming & 3 Light Modes: Built-in sensitive touch control, simply tap to power on/off and switch among 3 adjustable warm light options, easily customize ambient lighting for bars, bedrooms and dining occasions
- Universal Bottle Plug-in Design: Tapered bottle stopper fits most wine, liquor and glass bottles perfectly, no extra tools needed. Just insert into bottle mouth to turn empty bottles into elegant decorative lamps in seconds
- Rechargeable Battery with 6-9H Long Runtime: Built-in rechargeable lithium battery delivers 7 to 10 hours working time after fully charged. Cordless wireless design gets rid of socket limits for flexible indoor & outdoor placement
- Premium Matte Exquisite Craftsmanship: Matte ABS lampshade paired with sleek metal plug features wear-resistant and minimalist black outlook, works as both practical lighting and stylish home decor ornament
- Wide Versatile Application: Portable wireless bottle lamp suitable for home bedroom, living room, restaurant, cafe and bar decoration. Works as romantic atmosphere light for daily use, party decor and holiday gift option
Choosing an implementation
| Option | Advantages | Trade-offs |
|---|---|---|
| Custom PCB and 3D-printed enclosure | Exact fit, clean wiring, repeatable assembly and selectable brightness. | Requires fabrication, soldering and revision-specific parts; the small panel remains the charging bottleneck. |
| Ready-made solar garden-light top | Fastest route to an integrated panel, charger and LED. | Battery chemistry, charging limits and brightness may not match the bottle or a 14500 cell; compatibility must be verified. |
| Simpler cap-mounted build | Fewer printed parts and easier prototyping. | Less strain relief and sealing control, with greater risk of accidental shorts or mechanical failure. |
Troubleshooting checklist
- No light: remove the battery and check LED polarity, switch continuity, connector seating and the selected schematic’s terminal labels.
- Battery does not charge: verify panel polarity, unobstructed sunlight, charger-input voltage and that the charger/protection parts belong to the same revision.
- Very short runtime: test at a lower brightness, check battery condition and capacity, and measure whether the panel receives direct sun for enough hours.
- Water or condensation inside: stop using the lamp, disconnect the cell, dry and inspect it, then improve the panel, LED, enclosure and cap seals. Do not assume epoxy has made the assembly waterproof.
- Heat, swelling or odor: disconnect the battery immediately and retire any damaged Li-ion cell; do not continue testing a suspect pack.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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