Details
1. The LED lamp does not include a USB charger.
2. The lamp does not include a battery and cannot be directly connected to USB charging, otherwise it may cause the screen to burn out.
3. The lamp can only light up when the battery voltage is greater than 3.0V. If the voltage is insufficient, the voltage can be increased by connecting in series (rated voltage 5V, generally above 3V can light up, but the battery energy is too low, so it is unstable when lit).
4. The lamp can only display four Chinese characters or four letters at the same time.
Need R&D Support?
Browse key product categories and connect battery materials with Canrud's R&D services for testing, fabrication, and project support.
Experimental Materials
CategoryCathode, anode, electrolyte, separator, and other materials for battery research.
Shop cathode, anode & electrolyte materials →Lab Equipment
CategoryBattery lab equipment for pilot lines, fixtures, and testing workflows.
Browse battery lab equipment →Electrodes & Cells
CategoryCustom electrodes, dry cells, and battery cell components for R&D validation.
View custom battery electrodes & cells →Sodium Electrolyte
CategorySodium-ion electrolyte options for sodium battery research and validation.
Shop sodium battery electrolytes →R&D Services
ServiceFull-chain battery R&D services from material evaluation to cell fabrication and failure analysis.
Explore Canrud R&D services →Material Evaluation
ServiceCharacterization, electrochemical testing, and compatibility evaluation for battery materials.
Evaluate your battery materials →Electrode Fabrication
ServiceCustom electrode sheets and rolls based on your target chemistry and process needs.
Request electrode fabrication →Cell Fabrication
ServiceDry cells, assembled cells, and custom-format cell builds for R&D validation.
Build custom research cells →Contact
PageAsk Canrud to match products, materials, and services for your project.
Get product and R&D support →