DC Power Vintage Light

Reply

  #1  
Old 10-12-15, 07:23 PM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
DC Power Vintage Light

Hello,

I am designing a table lamp for a wedding centerpiece. I want to make a battery powered lamp using an LED vintage bulb.

Does anyone know where I can an LED vintage style bulb that takes DC power? Most of what I found online are AC power.

Thank you!
 
Sponsored Links
  #2  
Old 10-12-15, 07:41 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 51,892
Received 257 Votes on 242 Posts
Welcome to the forums.

Give us a link to the type of bulb you want..... AC or DC.... so we can see what style you want.

Maybe something in this line led-filament-antique-bulbs

Tough to find cool looking vintage bulbs that run on low voltage DC. The following link has some. May take a while to get from them.
12v Edison Led Bulb Suppliers and Manufacturers at Alibaba
 

Last edited by PJmax; 10-12-15 at 07:58 PM.
  #3  
Old 10-12-15, 08:17 PM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
Thank you, Pete! Glad I found this forum!

Ideally, I am looking for a tubular bulb like this one:

https://www.1000bulbs.com/product/15...52MSCL22K.html

But any shape and size would do as I know DC power options are very limited. I would like to stick with warm white to mimic the filament/vintage look.
 
  #4  
Old 10-13-15, 10:33 AM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
I found this bulb:

E27 LED Filament Light Glass Housing Blub Lamps 220V 4W 8W 12W 16W 360 | Alibaba Group

Can you this run on low DC power?

Thanks!
 
  #5  
Old 10-13-15, 12:27 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Upvotes: 0
Received 13 Votes on 11 Posts
220V 4W 8W 12W 16W
No, it runs on 220 volts.
 
  #6  
Old 10-15-15, 02:07 PM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
Does anyone have any other suggestions?

Thanks for your help!
 
  #7  
Old 10-15-15, 03:04 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Upvotes: 0
Received 13 Votes on 11 Posts
Why do you need it to run on LV DC?
 
  #8  
Old 10-16-15, 04:12 AM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
It's going to be a centerpiece at a wedding table so i don't want to run cords or heavy batteries.
 
  #9  
Old 10-16-15, 06:52 AM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Upvotes: 0
Received 13 Votes on 11 Posts
An inverter 12dc>120ac designed to plug in to a car power port might have enough power but you'd have to hide two 6v lantern batteries so it is probably a no-go for a couple of reasons.

I think it is a catch 22. The good choices of bulbs voltage wise won't be what you want. What you want won't be low voltage.

Name:  Rayovac-6-v-Lantern-Batteries.jpg
Views: 74
Size:  13.3 KB Name:  car-inverter-cj-8082-805.jpg
Views: 108
Size:  9.1 KB Name:  Rayovac-6-v-Lantern-Batteries.jpg
Views: 74
Size:  13.3 KB
 
  #10  
Old 10-16-15, 09:13 AM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Upvotes: 0
Received 13 Votes on 11 Posts
Just some seat of the pants figuring. E27 LED Filament Light Glass Housing Blub Lamps 220V 4W 8W 12W 16W 360 Degree Edison chandelier Replace Incandescent Dimmable-in LED Bulbs & Tubes from Lights & Lighting on Aliexpress.com | Alibaba Group Is 1.5 watts actual. That is .125 amps at 12v if I did the math correct. There is some loss to the inverter so call it .2 amps. A 6 volt lantern is rated at 25 amp hours so you should get more then enough time.

An alkaline C cell battery is ~17 amp hours so might be large enough. but you would need eight or nine of them. How well they would power the inverter is hard to say. This would have to be a try and see what happens thing.

You could even try AA batteries at ~2 Ah. Since you may only need .2 amps you might get at least four or five hours assuming 50% discharged before the voltage is to low to power the inverter but whether they would even power a small inverter I don't know.
 
  #11  
Old 10-17-15, 03:12 PM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
So I got a 6-watt 12v indicator bulb to work with a 9v battery using a snap connector and candelabra socket. It lit beautifully for about an hour before the battery died.

Any suggestions on how to make this last longer, say 4-5 hours?

Would connecting two 9v batteries work - or an 8 AA battery holder with snap connector (which would give me the 12v)?

Forgive me if there's an obvious answer here - I've never done this before.
 
Attached Images  
  #12  
Old 10-17-15, 03:51 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Upvotes: 0
Received 13 Votes on 11 Posts
Two 9v batteries in parallel would approximately double the time.

Average amp hour for an alkaline 9 volt battery at 100 ohms is 0.48.
Average amp hour for an alkaline AA battery at 100 ohms is 2.5.
So 8 AA batteries would probably give you at least three or four times as long but it is all theoretical till you test it in the real world.

There are nearly obsolete PP6 9 volt batteries which are much large and have double the AH but they are very expensive. Example: https://www.batteriesandbutter.com/EX246.html
 
  #13  
Old 10-17-15, 04:03 PM
Member
Thread Starter
Join Date: Oct 2015
Location: USA
Posts: 9
Upvotes: 0
Received 0 Votes on 0 Posts
Thank you! I will give the 8 AA's a go and will report back.
 
  #14  
Old 10-17-15, 04:21 PM
Member
Join Date: Oct 2008
Location: New England
Posts: 10,390
Received 20 Votes on 18 Posts
They make 12 volt amber LED lights for autos. Unknown if the color will fit your needs, but they would last a lot longer on a battery.

Bud
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: