... stroboflash, no radiation, no glare, long lifespan, 3-year warranty. 8 inch down light 18WEnergy-saving,elegant, no noise, no stroboflash, no ... you can use it. Only professionals can open the armature.2. Embedded-type installing: drill a circle diameter 210mm in the ... , and lock it firmly with snap hook.Packaging:More photos: 8 inch down light 18W