Products related to 3D-LED-LUMINOUS:
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Luminous shot glasses (2 rooms) Shot LED
To illuminate your evenings and give pep to the decoration of your space, use these luminous shot glasses. They are perfect for those who have had a little too much to drink so they can easily find their drinks.* Matter of shots : Plastic Functions : 2 luminous shot glasses Contents : 2 random color light up shot glasses* Shots material : Plastic Functions : 2 luminous shot glasses Contents : 2 Random Color Light Up Shot Glasses
Price: 24.85 £ | Shipping*: 0.0 £ -
Cross-border LED Transparent Crystal Fidget Spinner Luminous Colorful Street Stall Luminous coffee
This product is made of high quality material, non-toxicity, lightweight with high durability. You will love it. Features: Made of high quality material, non-toxicity, lightweight with high durability. Beautiful and luxury design, stylish and smooth touch. Easy to use and reusable. convenient to install.
Price: 9.39 £ | Shipping*: 0.0 £ -
1.75mm 3D Printer Filament Luminous Star Highly Accurate Strong Adhesion Bubble Free 3D Printing
Feature: 1. Glow in the Dark: Glow in the dark after exposure to ultraviolet or sunlight, luminous PLA has been carefully formulated to maintain its processability and effectiveness, ensuring the best balance between brightness and duration. 2. Stable Performance: Excellent PLA filament has strong toughness, low shrinkage and better adhesion between layers to meet functional printing needs. 3. Highly Accurate: Perfect roundness and very precise Diameter tolerances, PLA 3D printing filament is well wound, and has no overlaps or tangles, so feed is smooth and continuous and will not clog the die or extruder. 4. Main Functions: No warping, good adhesion, no bubbles, high success rate and high accuracy. Printed items can be used as decorative kits or for other fields. 5. Easy to Use: 3D printer filament bundle is designed to be easy to use, so you can use it easily, which is convenient and practical for you. Specification: Item Type: 3D Printer FilamentMaterial: PLAPrinting Temperature: 200 to 230 degrees C Printing Speed: 30 to 70mms Platform Temperature: 0 to 50 degrees C Recommended Layer Height: Approx. 0.2mm0.01in. Package List: 1 x 3D Printer FilamentGlow in the Dark: Glow in the dark after exposure to ultraviolet or sunlight, luminous PLA has been carefully formulated to maintain its processability and effectiveness, ensuring the best balance between brightness and duration. Stable Performance: Excellent PLA filament has strong toughness, low shrinkage and better adhesion between layers to meet functional printing needs. Highly Accurate: Perfect roundness and very precise Diameter tolerances, PLA 3D printing filament is well wound, and has no overlaps or tangles, so feed is smooth and continuous and will not clog the die or extruder. Main Functions: No warping, good adhesion, no bubbles, high success rate and high accuracy. Printed items can be used as decorative kits or for other fields. Easy to Use: 3D printer filament bundle is designed to be easy to use, so you can use it easily, which is convenient and practical for you.
Price: 37.04 £ | Shipping*: 0.0 £ -
LED Meteorite Stress Ball Luminous Anti-Stress Game
This squeeze ball is your ally to relieve stress at any time. It looks like a magnificent meteorite with an LED and lights up with each impact on the ground.. A must-have gift* Diameter : 7 cm * Squeeze ball * LEDs * Batteries included Functions : anti stress Contents : 1 luminous anti-stress meteorite ball* Diameter : 7 cm * Squeeze ball * LEDs * Batteries included Functions : anti stress Contents : 1 luminous anti-stress meteorite ball
Price: 29.75 £ | Shipping*: 0.0 £
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How can the luminous duration of small LED lamps be extended?
The luminous duration of small LED lamps can be extended by using high-quality LED chips with efficient heat dissipation to prevent overheating, which can degrade the performance of the LEDs. Additionally, using a proper driver circuit and power supply can help regulate the voltage and current supplied to the LEDs, ensuring they operate within their optimal range. Finally, using LED lamps with a lower power output and implementing energy-saving features such as dimming controls can also help extend their luminous duration.
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What are self-luminous bodies?
Self-luminous bodies are objects that emit their own light, as opposed to reflecting light from another source. Examples of self-luminous bodies include stars, the sun, and certain types of light bulbs. These objects generate their own energy through processes like nuclear fusion or electrical current, which produces light as a byproduct.
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Is the luminous clock radioactive?
No, the luminous clock is not radioactive. The luminescence in the clock is typically achieved using a phosphorescent material that absorbs light and then slowly releases it over time. This process does not involve any radioactive materials. The glow from the clock is simply a result of this light-absorption and emission process.
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What is a luminous point?
A luminous point is a theoretical concept used in physics and optics to represent a source of light that emits light in all directions. It is often used as a simplification in the study of light and its behavior, allowing for easier calculations and analysis. In reality, a luminous point does not exist as a physical object, but it is a useful tool for understanding the behavior of light in various systems.
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Easter Inflatable Bunny LED Lights Luminous Holiday Venue Decoration
Feature: 1. 1. Cute Appearance Design: The inflatable Easter bunny is cute and vivid, and and comes with colorful lights. Installed in the courtyard to enjoy holiday with your family and spreading a happiness atmosphere to your neighborhoods. 2. 2. Excellent Craftsmanship: The Easter inflatable is made of high strength polyester, which is against rips and tears, the excellent stitching improves the durability of the inflatable decoration. In addition, this outdoor inflatable is providing with a powerful?duty blower to continuous airflow inflate the decoration. 3. 3. Perfect Size & Components: The size of 1.1m / 43.3in height Easter inflatable is perfect for outdoor or indoor use. No worries about if this inflatable might fly away by the wind. Beside blower, we providing stakes and ropes to secure it on the ground. 4. 4. Easy to Use and Safe: Connect Easter Outdoor Decoration to the power supply to inflate, it only takes a few seconds. 5. 5. Use Occasion: You can use it as a party decoration, and as a Yard Lawn Inflatables Decor, suitable for family, living room, hall, room and your garden. Specification: Specification Material: Polyester Fiber Color: Assored Size: 1.1m / 43.3in Height Weight: 430g . Package List: 1* Easter Inflatable 1* Blower 2* Ropes 1* Color Light 4* Stakes 1* Adapter
Price: 33.65 £ | Shipping*: 0.0 £ -
2023 Colorful LED Luminous Quartz Watch for Men & Women pink
Enhance your style with this vibrant timepiece, featuring a colorful LED display that offers a striking luminous effect in various lighting conditions. Suitable for both men and women, this quartz watch combines modern aesthetics with practicality. With its durable construction and comfortable fit, it seamlessly blends functionality with a trendy, eye-catching design, making it a versatile accessory for any occasion. Display Type: Pointer + Number Waterproof: 10m Movement Type: Quartz Thickness: 11mm Dial Diameter: 39mm Crown Type: Screw-down crown Mirror Material: Plastic mirror Buckle Style: Buckle Buckle Material: Stainless steel Strap Material: Silica gel Dial Shape: Round Case Material: Plastic Manufacture country: China Instructions included: No
Price: 3.9 £ | Shipping*: 0.0 £ -
1.8M Easter Inflatable Bunny LED Lights Luminous Holiday Venue Decoration
Feature: 1. 1. Inflatable easter bunny is great for any occasion, liker parties, lawns and festivals! 2. 2. Includes Built in Fan Motor, Yard Stakes & Tether Ropes, LED light and necessary tools for easy installation. 3. 3. Made of durable 190T polyester for long term use. Included light bulbs for nighttime display 4. 4. Can be used both indoor and outdoor! 5. 5.It can be used as a decoration, but also as a gift. Specification: Specification Material: 190T Polyester Color: See Photo Size: 1.8m Package Includes: 1 x Inflatable Bunny 1 x Fan 1 x Transformer 2 x LED light 2 x Metal Stake 2 x String 2 x Plastic Stake. Package List: Package Includes: 1 x Inflatable Bunny 1 x Fan 1 x Transformer 2 x LED light 2 x Metal Stake 2 x String 2 x Plastic Stake
Price: 38.7 £ | Shipping*: 0.0 £ -
LED Electronic Digital Luminous Car Watch Clock Accessory Decoration (Green)
Features: Digital LED clock with luminous function, super bright, easy to read at night. Made of good quality materials, solid, durable and wearresistant. Large LED screen can clearly display hours, minutes, seconds, date and timer function. Universal, suitable for most cars. Easy ton install and remove. Beautiful and stylish, and instantly upgrade your car s appearance. It is widely used in equipment and cars, boats, airplanes, etc. 4.530V input voltage, practical and easy to use. Specification: Material: ABS Optional Color: Red, Green, Blue Input Voltage: 4.530V (wide range) Standby Battery: CR1220 (clock backup power supply, can be maintained for more than 12 months without power) Working Current: 120mm Min. Supply Voltage: + 4.5V Max. Supply Voltage: +30V Working Temperature: 10 ~ +65 Working Humidity: 1080percent (no condensation) Working Pressure: 80 106kPa Sunlight Exposure: No direct exposure Size: Approx. 48x29x21 mm 1.89x1.14x0.83 inch Packing List: 1 x Digital Car Clock Operating Instructions: Load the CR1220 button battery into the battery holder according to the direction of up positive, down negative . (Note: If the battery is not installed or is installed upside down, the set time will be lost when the red and black wire is not powered.) In the case of equipped with batteries, the clock will keep going even if not connect to the power supply. Connect it to the power supply as per red positive black negative method and it will display 0:00. Key switch order: hour minute mode second mode date mode timer mode Second Mode: Press the key for one time under time mode and the second will be displayed in format XX. It will automatically jump back into time and minute mode after 30 seconds without pressing the key. Click the key again to jump to the next mode. Date Mode: Press the key twice under time mode and the second will be displayed in format: Month: Date. It will automatically jump back into time and minute mode after 30 seconds. Click the key again to jump to the next mode. Timer Mode: Press the key for three times under time mode and the second will be displayed in format: 00:.00. When the timer is not started, it will automatically jump back into time and minute mode after 30 seconds without pressing the key. Long press the key to start timing under timer mode, and the dot below the colon starts to flash. Long press the key again to pause the timer. The dot below the colon is always on and does not flash. Long press it again to start accumulating timing again. Timing Reset Method: External red and black lines power off, long press the key for about 5 seconds. Press the button under timer mode to switch to hour, minute mode, and view the date and seconds. Time Setting: In the mode of hour, minute or second, long press the key until the number of hour flashes, which indicate it enters into the setting of time hour, and then press the key again and again for hour adjustment. After setting hour, press the key for a long time until the number of minutes flash, which indicate it enters into the setting of minutes. Press the button again and again for a minute adjustment. After setting minute, press the key for a long time until the number of second flash, which indicate it enters into the setting of second. Press for one time to clear, long press will exit time setting mode and save the set time. During the time setting process, it will automatically exit setting mode after 30 seconds without pressing the key. Date Setting: Under date mode, long press the button until year flash, which indicate it enters the setting mode. Press the key again and again for year adjustment. Long press the button until the number of month flash, which indicate to enter month setting. Press the button again and again for month adjustment. After the month is set, long press the button until the day number flash, which indicate to enter the day setting, and then press the button again and again for day adjustment. After the adjustment is OK, long press the button to exit the date setting mode and save it. During the date setting process, it will automatically jexit the setting mode after 30 seconds without pressing the key. .Digital LED clock with luminous function, super bright, easy to read at night. Made of good quality materials, solid, durable and wear?resistant. Large LED screen can clearly display hours, minutes, seconds, date and timer function. Universal, suitable for most cars. Easy ton install and remove. Beautiful and stylish, and instantly upgrade your car s appearance. It is widely used in equipment and cars, boats, airplanes, etc. 4.5?30V input voltage, practical and easy to use.
Price: 10.3 £ | Shipping*: 0.0 £
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Why is the luminous intensity and not the luminous flux specified for reflector lamps?
The luminous intensity is specified for reflector lamps because it measures the amount of light emitted in a specific direction, which is important for directional lighting applications such as spotlights and floodlights. Reflectors are designed to control and direct light in a specific direction, so specifying luminous intensity helps to ensure that the lamp is suitable for its intended purpose. Luminous flux, on the other hand, measures the total amount of visible light emitted by a source in all directions, which may not be as relevant for reflector lamps where the focus is on directing light in a specific direction.
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What is the difference between a self-luminous and an externally luminous object in physics?
In physics, a self-luminous object is one that produces its own light, such as the sun or a light bulb. These objects emit light due to internal processes, such as nuclear fusion or electrical excitation. On the other hand, an externally luminous object is one that reflects light from another source, such as the moon or a mirror. These objects do not produce their own light but appear illuminated due to the light they reflect from another source.
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What are self-luminous celestial bodies?
Self-luminous celestial bodies are objects in space that emit their own light and heat. This includes stars, which generate energy through nuclear fusion in their cores, as well as other luminous objects such as brown dwarfs and hot gas giants. These bodies are able to shine and be visible from Earth due to the light they produce, unlike non-luminous celestial bodies such as planets and moons, which reflect light from the Sun.
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What are Genshin Impact Luminous Crystals?
Genshin Impact Luminous Crystals are a type of valuable resource that can be found in the game world of Teyvat. They are used for crafting and upgrading weapons, as well as for character ascension. Luminous Crystals come in different elemental varieties, such as Anemo, Geo, Electro, and so on, and players can collect them by mining or defeating certain enemies. These crystals are essential for progressing and strengthening characters and equipment in Genshin Impact.
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