Specifications: Power: 100W, 150W, 175W Voltage: 120V, 230V Average service life time: 3,000-5,000h Lamp bas: E27 Lamp diameter: 121mm Features: This lamp is designed for use in applications specifically requiring a short-wave infrared radiation source. Heat rays from infrared lamps pass through the air without heating it, as does energy from the sun. JieNeng Infrared PAR38 Lamp: Use natural colored glass bulb shelled as PAR38 type infrared lamp because of reasonable operating cost, ease of installation and minimal storage space. JieNeng Infrared PAR38 lamps are widely accepted by customers. Life:3000-5000h