Bulb: 10PCS SAMSUNG LED +1PCS SAMSUNG LED

Battery: 1 x 18650

Function: 100%-30%-1W

Maxoutput: 300 lm (SMD) , 50 lm (Samsung LED)

Run time: 2.5 hours (SMD) , 24 hours (Samsung LED)

Beam distance: 20 meters 

Water proof : IPX4

Product size:Φ35XΦ28.5X343 MM

N.W.:216 g

When the power is low , it will let you notice it by turning green to red.

Constant Current Circuit design.

You can adjust the SMD angle ,if you need