Specifications: 1) Watt: 18W/30W/36W 2) Bulb type: T6 3) Base: G13 4) Color temperature: 6500K/4200K/2700K 5) T6 series fluorescent tubes (Φ20mm) with various color temperature such as daylight, cool white, warm white, can be used to replace T8 series fluorescent tubes (Φ25mm) 6) Used for general lighting and are recommended for offices, roads and homes 7) CE and ISO9001 approved