YH1903 Specifications Solar Panel:Monocrystalline sillicon,80x3mm,5V/0.45W Light Source:SMD2835/0.5W/LM(26PCS)

Battery: #18650 3.7V 2200MAH*1 Color Temperature: 4000-4500K 

Lumen:Mode one :3.28W/126LM+15LM

Mode two warm white:1.6V/64LM±10LM

Mode three neutural white: 0.8W/22LM±8LM,