ting temperature range: 12℉-130 ℉/-20 ℃-65 ℃ Low battery alarm trigger range: N ominal 12V:10V-10.4V Nominal 24V:20V-21V Nominal 48V:40V-42V Low battery shut down range: N ominal 12V:9.7V-10V Nominal 24V:19.4V-20V Nominal 48V:40V-42V High battery shut down range (nominal):15V/30V/60V Type CP SP Efficiency THD NL Dimension (L*W*H)mm Weight BEP120S 120W 250W >90% ≤ 5% <0.6A 135*95*55 0.5kg BEP300S 300W 300W >85% ≤ 5% <0.6A 170*151*73 1.1 kg BEP500S 500W 1000W >85% ≤ 5% <0.6A 255*150*71 1.9kg BEP1000S 1000W 2000W >85% ≤ 5% <0.8A 365*150*72 2.9 kg BEP1500S 1500W 3000W >85% ≤ 5% <0.8A 450*150*90 3.85 kg BEP2000S 2000W 4000W >85% ≤ 5% <0.8A 450*150*90 3. 9kg CP: Continuous Power SP: Surge Power THD: Total Harmonic Distortion NL: No load Current Draw Specification subject to change without notice