## Compact, Playful and Built for 510 Cartridges
The FLB001 MIDNIGHT JOY is a compact 510-thread battery featuring a playful dice-inspired transparent housing. Its distinctive stacked-cube design combines portability, adjustable performance and a visible display in a product made for creative retail and private-label programs.
Designed to support cartridges from 0.5ml to 3.0ml, FLB001 provides broad compatibility for different product formats. The button-controlled system allows users to select from four voltage levels, while the 10-second preheat function helps prepare the cartridge before use.
## Key Features
* Universal 510-thread connection
* Compatible with 0.5ml–3.0ml cartridges
* Four adjustable voltage levels
* 10-second preheat function
* 400mAh rechargeable battery
* Type-C charging port
* Button-controlled operation
* Digital voltage and battery display
* Compact dice-inspired transparent housing
* Custom logo, colors and packaging available
## Designed for Private-Label Programs
FLB001 is available for OEM and ODM projects. Funle can support custom housing colors, logo printing, branded packaging and product presentation according to your brand requirements.
Contact our team for samples, MOQ, customization options and project quotations.
