regulated DC power supply
12 volt power supply after solar charging can not store power for long.
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@jeetendradeo this "can not store power for long" sounds like either a bad battery (not holding a full charge) or your solar panel controller not allowing the battery to fully charge. My prime suspect would be the battery. Replace the battery and then re-evaluate. Now, since we don't know the make and model for your power supply we can't help you any further.
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