need to make battery packs for lights

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  #1  
Old 05-07-15, 01:11 PM
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need to make battery packs for lights

if have these little lamps:

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they have regular 2 pronged ac plugs for the wall. inside the can is a regular E-27 socket for a bulb. supposedly they're 60W max.

i put these bulbs in them:

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it's an LED bulb that changes colors from a remote controller. input voltage is 85V~265V AC 50-60Hz. uses at most 9W.

i want to make battery pack to power one of these lamps with this bulb in it. i don't want to modify the lamp; i want to be able to just plug it into the pack. the power needs to last like 6hrs at a time.

what type of battery pack do i need to make?
 
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Old 05-07-15, 01:24 PM
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You would need to use a large battery such as a car battery and an inverter. If you used to series wired sets of 60 D cell batteries in parallel you would probably get only a few minuets of use.
 
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Old 05-07-15, 01:28 PM
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Yeah, that type of lamp is not a good option for what you want to use it for being it is for AC volts. Look for a different lamp with uses 12 volts DC, they will be easy to find.
 
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Old 05-07-15, 05:46 PM
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the lamp is pretty simple. i'm most interested in keeping the fixture body because of the look. i guess i'm fine with changing the electrical components of the fixture, of which there hardly is anythig. electrically it's pretty much just wires and a socket.

so i've seen those battery powered sockets you can put any e-27 bulb into and just stick it wherever. those take like 4 AA batteries. supposedly i can stick my LED bulb right in there and it works. can i not just re-wire the lamp for how many ever batteries i need?
 
  #5  
Old 05-07-15, 06:51 PM
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The issue is not the fixture but the LED bulb. The bulb you picked out is input voltage of 85V~265Volts AC 50-60Hz. 1 AA battery voltage is 1.5 volts DC. These voltages are miles apart and are not the same thing. The only practical way to do it would be, as Ray posted, use a car battery and an inverter to change 12V DC to 120 volts AC.
 
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