Best-in-class system efficacy - Up to 130 Lm / W. Universal Voltage: AC120-277, 347-480V (50/60Hz). Instant illumination and restrike - no warm-up time required. Safe and reliable heat transfer - Offering a T-rating of T6 ( CID1 ). Shock-and vibration-resistant - Durable LEDs with solder-less board connection. Copper-free aluminum body and frame -corrosion resistant. All exposed fasteners with quality stainless steel.