Virtually maintenance-free Philips QL Induction Lamp System. 100,000 hour life minimizing routine maintenance costs(downtime, equipment rental, manpower, replacement lamps and parts. Instant start and restart. Good lumen maintenance (retains light output) - less than 30% depreciation after 60,000 hrs operation. Provides a temperature rating of T6 (85ºC) when used with the restricted breathing option S826. Starts in low temperatures - as low as -40° C. Crisp white light (80 Color Rendering Index), true color rendering with no color shift over the life of the lamp system. High Lumen Output & Efficacy. Nominal Power Factor of 0.96 increases useable watts to an excellent level. Low Total Harmonic Distortion (<10%) will not add electrical noise to circuits. Low EMI, Complies with FCC Class A - Non-Consumer Limits.