This Round 9W UltraSlim LED Panel uses an SMD2835 LED chip. Its main characteristic is its slim, innovative and modern design. It also features a frosted diffuser, which offers a semi-diffused light that is ideal for commercial or domestic use. With a wide 120° opening angle, it's able to light a large area with high efficiency. Included is a high quality aluminium heat sink to minimize heat emmision, making this downlight perfect for areas that need to be lit during long periods of time. Includes Driver (9x4x2.5cm) Dimmable. To dim this panel, purchase the corresponding dimmable driver.Voltage (V) : 85-265V AC, Frequency (Hz) : 50 - 60 Hz, Power (W) : 9, Light Source : LED, Average Life (Hours) : 30.000, Certifications : CE & RoHS, Energy Class : A+, Cut-Out (mm) : Ø135mm, Dimmable : Yes - Dimmable LED Driver Required, IK Protection : 05, IP Protection : 20, Lens Type : Frost, Material : Aluminium / PC, Size (mm) : Ø146x20 mm, Use : Indoor, Warranty : 2 years, Installation : Recessed, Safety Class : II - Basic insulate plus reinforced insulation, Lumens (Lm) : 700,