The 28W Elpine fluorescent light bulb is designed for energy-saving efficiency with its slim lamp tube and 4 pin connectors. This clear white light bulb, with a colour temperature of 3500 - 4500 K, is ideal for indoor use in both home and office environments. With a modern style and a bulb life of 5,000-9,999 hours, this fluorescent tube provides bright and long-lasting illumination.