HT501 is a high ambient temperature LED high bay designed for industrial, commercial, and high-heat environments. With excellent heat dissipation, premium aluminum housing, and multiple optics/lens options, it delivers up to 70,000 lumens with efficacy up to 180 lm/W. Compatible with advanced dimming, sensor, and wireless control systems, HT501 provides reliable performance in harsh environments, operating up to 176°F.