Overcharging circuit protection
Deep discharge protection
NO RF noise
No blackening of tube ends
Tube: 9 11 18 watts (optional)
Battery: 6V, 4.5 AH; “Field Maintenance Free (FMF VRLA)"
Duration : 4 hrs. with high brightness 6 hrs. with lower lumen
Packing : 3 ply cardboard. We can also provide customised design, based on the application requirements