Unlike other's 4 LEDs, our solar disk lights consist of 8 LED lights which means producing more light for your path. It can illuminate for 8-hours to 10-hours with 4-hours to 6-hours of charging. (Charging and working time will change depending on the weather) Override material with stainless steel lamp shell, enough strong to withstand inclement weather and 100KG standing body. The solar ground lights automatically turn on in darkness or at night and turn off in daytime or bright area. Adding perfect lighting for your courtyard, gardens, sidewalks, patio and corridors, pathway. Turn on the switch under the cap and push the stake into the soil. Adopted IP65 grade waterproof design. No worries about heavy rain, snow, frost or sleet. Customer Service: If you are not satisfied with the Solar Lights, just return them within 90-days for a full refund.