The Exo Terra Sun Glo Halogen bulb provides higher temperatures of halogen lighting contributing to a whiter light a higher light output and a greater efficiency. - Highly energy efficient broad-spectrum daylight bulb. - Optimizes heat penetration through increased infrared levels. - Enriches colouration through Neodymium. - Stimulates breeding behaviour and physiological well-being through UVA rays. - Can be combined with Night Glo or Heat Glo for a 24-hour cycle.