Item	MH-400W-E	MH-250W-E
Lighting Source Type	400W MH&HPS	250W MH&HPS
Input Voltage	220V±15%	220V±15%
Input Frequency	50/60Hz	50/60Hz
Input  current	1.9A	1.21A
Power factor	>0.95	>0.95
Input  power	420W	266W
Start current	0.5A	0.35A
Start Time	Less than 3 minutes	Less than 3 minutes
Instant voltage sag	30%	30%
Total harmonic distortion	<10%	<10%
Operating Temperature	-20℃~+50℃	-20℃~+50℃
Power efficiency	95%	94%
Useful Life	5000 hours	50000 hours
Max distance from Lamp	15m	15m
Housing material	Aluminium	Plastic
Dimension(L×W×H)mm	222*110*69	167×91×61
Net weight	2.4kg	1.9kg
Dimming	PWM/0--10V/RS232/RS485/DALI	PWM/0--10V/RS232/RS485/DALI
Warranty	Two years	Two years