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Product Introduction


Product Summary

The 3.19-Inch Concave Round Black LED Light Base is a circular pedestal designed for displaying crystal balls, glass art, and heavy tumblers. It provides a stable, self-centering foundation with upward RGB lighting, perfect for highlighting spherical objects in retail displays, galleries, or home collections.


Core Specifications & Fact-Based Benefits

  • Self-Centering Concave Architecture: Features a 3.19-inch overall diameter with a wide 3.03-inch top surface concave indentation. This curvature matches spherical profiles, preventing roll-offs while aligning the light path directly through the core of the object.
  • High-Contrast Matte Black ABS: Manufactured using structural-grade ABS polymer in a matte black finish. This material isolates internal electrical components, eliminates external light scattering, and provides an unreflective backdrop that focuses attention solely on the illuminated artwork.
  • 6-Mode Pure-Color RGB Module: Integrates a high-density LED matrix offering 6 distinct modes (Slow/Quick Flash, Constant White/Red/Blue/Green). The system cycles smoothly via a capacitive surface sensor to accommodate varying glass refractive indices.
  • Dual Circuit Power Capabilities: Engineered with a continuous-feed micro-USB DC circuit alongside an independent 3 AAA battery bay. This allows transition from static storefront grid utility to wire-free display at exhibitions.

B2B & Wholesale Information

  • MOQ: 200 PCS
  • Packing Specification: 200 PCS / BOX
  • Customization: We provide professional Customized Services for bulk orders, including bespoke shell colors, tailored light spectrum configurations, and private branding.
Specific Description

Product Information

ProjectDetails
ComponentsConcave Lamp Base, USB Cable Line
MaterialReinforced Matte Black ABS Plastic
Light Options6 Colorful Modes (Capacitive Touch Switch)
Power Methods3 AAA Batteries or USB Cord
Base SizeDiameter: 3.19" (81mm) | Height: 1.10" (28mm)


Why Choose Bowei Concave Round Base?

A1. Superior Sphere Alignment: The wide 3.03-inch concave depression creates physical centering for spherical art, ensuring full stability and optimal light projection through the center axis of your pieces.

A2. High-Density Opaque ABS: Engineered with premium black ABS plastic that completely eliminates light leakage through the sidewalls, focusing 100% of the glow upward to improve display contrast.

A3. Low-Profile Round Integration: The 1.10-inch low profile structure integrates into circular glass cabinet shelves and tight counter configurations without stealing visual focus from the artwork.

A4. Seamless Capacitive Touch: Includes an internal capacitive touch switch that changes lighting modes with a light touch, eliminating physical buttons for a sleeker commercial presentation.

A5. Dual Energy Versatility: Supports micro-USB plug-in power for continuous commercial operation and a 3 AAA battery compartment for mobile retail display flexibility.




Best For

  • Best for spherical glass art, crystal balls, and marble collectibles
  • Best for retail counter displays, custom glass art gift boxes, and artisan galleries
  • Best for specialized glitter tumbler and custom epoxy cup presentation
  • Best for heavy 3D laser-etched crystal blocks and gemstone geodes
  • Best for wire-free showcase installations using portable AAA battery power



Frequently Asked Questions

Q: What size crystal spheres should I use with this 3.19-inch base?

A: Spheres between 3.15 and 5 inches (80mm–130mm) are recommended. The 3.03-inch concave top provides an optimal cradle that centers the sphere’s weight, ensuring the light path from the internal LED array correctly illuminates the object’s core without causing rolling.

Q: Can this base run on standard AA batteries instead of AAA?

A: No. The internal battery compartment is strictly sized for 3 AAA batteries. Using AA batteries will not fit the physical housing, and attempting to modify the compartment may cause electrical shorts or damage to the unit’s internal power terminals.

Q: Is it safe to leave this light base plugged into USB power 24/7?

A: Yes, if the batteries are removed. When using the USB cord for long-term commercial display, ensure the 3 AAA battery bay is empty. Leaving batteries installed while connected to grid power can cause overheating or battery leakage due to voltage feedback from the constant power source.

Q: Does this base have a "stay on" mode for a single color?

A: Yes. The 6-mode cycle includes constant illumination settings for white, red, blue, and green. You can select your preferred color mode by tapping the capacitive touch sensor until the desired color remains fixed, rather than cycling through the flash patterns.

Q: How do I turn the unit off without unplugging the cord?

A: Press and hold the capacitive touch sensor on the base surface for approximately 3 seconds. This will bypass the lighting cycle and execute a hard shutdown of the internal power circuit, effectively turning the unit off without needing to physically disconnect the USB cable line.

Q: Will the matte black plastic surface reflect LED light?

A: No. The housing is constructed from high-density, matte-finished ABS plastic. This non-reflective surface prevents glare from scattering outward, ensuring that 100% of the light output is directed upward into the crystal or glass art piece being displayed.

Q: Can I use this base for a heavy glass tumbler or epoxy cup?

A: Yes. The base is rated to support weights consistent with standard glassware and heavy resin tumblers. However, ensure the tumbler’s base is wider than 3.03 inches to achieve full contact with the support rim for optimal stability and illumination.

Q: What is the maximum weight capacity of this 3.19-inch display stand?

A: It is designed to support up to 2 kilograms (approx. 4.4 lbs) of stationary glass or crystal weight. Exceeding this weight can deform the concave surface or damage the internal pressure-sensitive capacitive switch, causing the lighting modes to trigger inconsistently.

Q: Does the unit generate heat when left on for long periods?

A: No. The internal configuration uses a low-voltage cold-luminous LED layout operating at DC 5V. It maintains a steady operating temperature without generating thermal buildup, ensuring that temperature-sensitive glass resins or crystals remain physically unaffected during 24/7 commercial showcase operation.

Q: How many units do I need to order for custom brand printing?

A: The minimum wholesale volume for custom shell logo laser engraving or specific packaging requests is 200 units. You can coordinate your branding specifications and technical files through the Bowei factory Customized Services portal.

Address: Room 1309, No.1 Huansheng Street, Nansha Street, Nansha District, Guangzhou City, P.R.China
Service Hotline: +86 1802178612