Material: PS lens and PP base 4pcs ultra-bright LEDs 0.4W high-quality silicon solar panel power 1.2V 1500Ah Ni-MH rechargeable battery standard flash rate in 65+/- 5 times/minute 8 hours recharged can work 120-150 hours. Inside switch with photosensor make the light dusk on and dawn off with metal handle and metal brackets, plastic screw-on base.