This is a Prolite 6.5w LED GLS Opal with a Bayonet Cap and a 2700k, extra warm white lamp equipped with a Photocell Sensor. Ideal for replacing incandescent and halogen GLS lamps. The GLS has 2 separate light receptive sensors also known as dusk to dawn sensors which recognise the time of day and subsequently turn/off accordingly with no manual adjustment required. Boasting a lumen output of 600 lumens and average life span of 30,000 hours. This lamp is non dimmable. Dimensions: 118mm x 65mm