cutandpolished61 Posted September 5, 2019 Report Share Posted September 5, 2019 Hi All, may I ask for some advice please. Still trying to understand the world of 12 volt. I have LED lights fitted but each light is drawing 0.9 amps. How is it possible that they still need so much power? Link to comment Share on other sites More sharing options...
WotEver Posted September 5, 2019 Report Share Posted September 5, 2019 1 hour ago, cutandpolished61 said: How is it possible that they still need so much power? Because they’re 10W lamps? Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 17 minutes ago, WotEver said: Because they’re 10W lamps? That's a big old LED then. 1 hour ago, cutandpolished61 said: I have LED lights fitted but each light is drawing 0.9 amps. What is the voltage at the lamp end? Link to comment Share on other sites More sharing options...
Onewheeler Posted September 5, 2019 Report Share Posted September 5, 2019 They're 12 V lamps and the batteries are delivering over 13 V? If so they won't last long... Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted September 5, 2019 Report Share Posted September 5, 2019 2 hours ago, cutandpolished61 said: Hi All, may I ask for some advice please. Still trying to understand the world of 12 volt. I have LED lights fitted but each light is drawing 0.9 amps. How is it possible that they still need so much power? Where is this 0.9A figure coming from? Are you measuring an individual lamp? If so how? Is it from a data sheet? Can you give us a link to the lamps you have? A 10W LED lamp would be big. So bright it could vaporise a cow at forty paces! Jen Link to comment Share on other sites More sharing options...
dor Posted September 5, 2019 Report Share Posted September 5, 2019 2 hours ago, WotEver said: Because they’re 10W lamps? Or a string of five two Watt lamps. How many lamps are their, and how are you measuring it? Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 Were all of the problems resolved from this thread, including the discharged batteries? Link to comment Share on other sites More sharing options...
cutandpolished61 Posted September 5, 2019 Author Report Share Posted September 5, 2019 4 hours ago, WotEver said: Because they’re 10W lamps? well it's not mentioned on the bulb. just a serial code from GE. googled it and it is a 16 watt bulb Link to comment Share on other sites More sharing options...
cuthound Posted September 5, 2019 Report Share Posted September 5, 2019 9 minutes ago, cutandpolished61 said: well it's not mentioned on the bulb. just a serial code from GE. googled it and it is a 16 watt bulb Probably not an LED bulb then. Do you have a photo of it? Link to comment Share on other sites More sharing options...
alan_fincher Posted September 5, 2019 Report Share Posted September 5, 2019 5 minutes ago, cutandpolished61 said: well it's not mentioned on the bulb. just a serial code from GE. googled it and it is a 16 watt bulb Are you sure it is an LED? 16 watts is a huge power for an internal 12V LED cluster. We have some quite powerful LED lamps that have whole sheet of small LEDs on them. They are not the best or most efficient in the world, but they still draw under 0.3A so are under 4 watts. We would need four of these large lamps on to match what you are saying. A picture of what you have, (or a link to it online) might help us comment. Link to comment Share on other sites More sharing options...
cutandpolished61 Posted September 5, 2019 Author Report Share Posted September 5, 2019 Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 (edited) 1 minute ago, cutandpolished61 said: Fluorescent, not LED Edited September 5, 2019 by rusty69 spelling 1 Link to comment Share on other sites More sharing options...
cuthound Posted September 5, 2019 Report Share Posted September 5, 2019 1 minute ago, rusty69 said: Fluorescent, not LED You can get replacement LED's for these. https://www.lyco.co.uk/light-bulbs/led-light-bulbs/led-double-d-bulbs.html Link to comment Share on other sites More sharing options...
cutandpolished61 Posted September 5, 2019 Author Report Share Posted September 5, 2019 Many thanks, so I could replace the 16w fluorescent bulb with a 6.5 w LED bulb without rewiring. Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 (edited) 9 minutes ago, cuthound said: You can get replacement LED's for these. https://www.lyco.co.uk/light-bulbs/led-light-bulbs/led-double-d-bulbs.html Me confused (it doesn't take much). Are these 240V fluorescent lamps? They look spookily similar to these: https://docs-emea.rs-online.com/webdocs/1416/0900766b814164a2.pdf Edited September 5, 2019 by rusty69 Link to comment Share on other sites More sharing options...
WotEver Posted September 5, 2019 Report Share Posted September 5, 2019 1 minute ago, cutandpolished61 said: Many thanks, so I could replace the 16w fluorescent bulb with a 6.5 w LED bulb without rewiring. Yup. On that website it reads: Simply remove the old light bulb and replace, no re-wiring required. The GE LED 2 Pin Bulb uses almost 60% less energy than a 16W fluorescent equivalent and lasts much longer. Link to comment Share on other sites More sharing options...
cutandpolished61 Posted September 5, 2019 Author Report Share Posted September 5, 2019 but currently I use the 4 pin version. Would the 2 pin version work? Link to comment Share on other sites More sharing options...
WotEver Posted September 5, 2019 Report Share Posted September 5, 2019 8 minutes ago, cutandpolished61 said: but currently I use the 4 pin version. Would the 2 pin version work? No, you’d need one of the 4 pin versions Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted September 5, 2019 Report Share Posted September 5, 2019 23 minutes ago, rusty69 said: Me confused (it doesn't take much). Are these 240V fluorescent lamps? They look spookily similar to these: https://docs-emea.rs-online.com/webdocs/1416/0900766b814164a2.pdf 16 minutes ago, cutandpolished61 said: but currently I use the 4 pin version. Would the 2 pin version work? We need to slow down here. We don't seem to have any confirmation if the LED replacements that are being linked to are for 240V AC mains, or 12V DC. That they don't mention voltage to me suggests they are for mains installations. The difference between the two pin and four pin versions is that the two pin florescent tube has a starter built in to the tube and the four pin uses an external starter built in to the light fitting. If this is being replaced by an LED, then the starter is no longer needed, so it will only actually need to have 2 pins. If a 2 pin version will fit in a 4 pin socket is another matter. I don't know. Bedazzled have their own recommendations for doing a 2D florescent to LED conversion. Not a direct swap, but still an easy conversion by removing the tube and any starter and sticking one of their LED clusters in the light fitting. Can @cutandpolished61 confirm that the current light fittings are definitely connected to a 12V supply, not mains from an inverter. Jen 1 Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 1 minute ago, Jen-in-Wellies said: We need to slow down here. We don't seem to have any confirmation if the LED replacements that are being linked to are for 240V AC mains, or 12V DC. That they don't mention voltage to me suggests they are for mains installations. I am getting confused. The OP mentioned 12V, but the picture linked to is 240V I think, as are the ones Cuthound linked to.So, if they are both 240V, not 12V, it is probably all good. Right, I am off back to sleep now. Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted September 5, 2019 Report Share Posted September 5, 2019 4 minutes ago, rusty69 said: I am getting confused. The OP mentioned 12V, but the picture linked to is 240V I think, as are the ones Cuthound linked to.So, if they are both 240V, not 12V, it is probably all good. Right, I am off back to sleep now. He also said 0.9A flowing with one fitting, which again suggests 12V, but could there be an inverter in their somewhere and the 0.9A is what is coming out of the battery? 12V 2D florescent lights do seem to still exist, but I'm having great difficulty finding anyone still selling the tubes that aren't LED replacements of one sort or another. Jen Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 3 minutes ago, Jen-in-Wellies said: He also said 0.9A flowing with one fitting, which again suggests 12V, but could there be an inverter in their somewhere and the 0.9A is what is coming out of the battery? 12V 2D florescent lights do seem to still exist, but I'm having great difficulty finding anyone still selling the tubes that aren't LED replacements of one sort or another. Jen Yep, I think the OP needs to clarify before going any further.So with that in mind, I have quoted this again:- 18 minutes ago, Jen-in-Wellies said: <Snip> Can @cutandpolished61 confirm that the current light fittings are definitely connected to a 12V supply, not mains from an inverter. Jen Over to you OP. Link to comment Share on other sites More sharing options...
cutandpolished61 Posted September 5, 2019 Author Report Share Posted September 5, 2019 Hi all, definitely 12v running from my 12 v battery bank Link to comment Share on other sites More sharing options...
rusty69 Posted September 5, 2019 Report Share Posted September 5, 2019 6 minutes ago, cutandpolished61 said: Hi all, definitely 12v running from my 12 v battery bank OK. Can you post a picture of the actual bulb you have and the GE serial code you have taken from it.A picture of the light fitting itself would also be useful if you intend to try and exchange your existing units for LED's. If you don't intend to,and are happy with the fluorescents, then don't bother. The ones Jen linked to above may be a viable alternative. Link to comment Share on other sites More sharing options...
cutandpolished61 Posted September 5, 2019 Author Report Share Posted September 5, 2019 ge f162d/835/4p is the GE code. I definitely have to change them. Drawing to much power. Link to comment Share on other sites More sharing options...
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