Recent content by romeroom

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    Powering LED's with NiCD D cell batteries for bicycle.

    Here is an example of what I wish I could figure out on my own: I have an extra one of these 18 volt drill batteries. How many of those small (3 AAA flashlights) can I light by simply connecting them (series/parallel)?
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    Powering LED's with NiCD D cell batteries for bicycle.

    Perfect. Thanks.
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    Powering LED's with NiCD D cell batteries for bicycle.

    Thank you. Pardon my ignorance (again): In your suggestion, you mention 4 NiMh batteries--possibly AA. You say a single lithium battery is/can be 4.2 volts correct? (is that the 18650 battery I see online?) So, to power 4 of these flashlights, you are suggesting 4 of these NiMhs, correct...
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    Powering LED's with NiCD D cell batteries for bicycle.

    UPDATE I want to first of all thank those of you who have responded, especially with words of wisdom. Even though for me this is just a small project for an old man, each of you drive home the importance of functionality and the hassle involved into what I'm trying to do. I appreciate this...
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    Powering LED's with NiCD D cell batteries for bicycle.

    Thanks for your expert reply. You and the other responder make a good point about the functionality of these lights in their use as bike lights. I am less concerned about “lighting the way” similar to a motor vehicle and more about being seen. If you or others feel that a standard bike...
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    Powering LED's with NiCD D cell batteries for bicycle.

    I appreciate the advice. I was just looking on Ebay and you can get something from Malaysa that includes turn signals for less than 5 dollars. There is the hassle factor as well. The cobbling of stuff together I don't mind and have much of it figured out. (I'm old and kinda like these...
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    Powering LED's with NiCD D cell batteries for bicycle.

    I have 4 D cell NiCD batteries that are brand new. Each D cell battery is 1.2 volts. (They came with a charger) I would like to use those batteries to power 4 of these or 4 of these flashlights together. Each of those flashlights are powered by 3 AAA batteries. Essentially I would put 2...
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    Connect flashlights to rechargeable battery supply

    I have approximately 10 small LED flashlights: http://www.harborfreight.com/3-12-in-9-led-mini-flashlight-69111.html Each of these is powered by 3 AAA batteries. I would like to connect all of these to a single rechargeable power source (battery) and then to a switch so I can turn them all...
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    Help with wiring LED strip

    Thank you so much for taking the time for such a detailed response. I'm really looking forward to experimenting with the suggestions I've gotten. I will not receive the LED strips until sometime in mid to late January. I will report back and post pictures of what I come up with.
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    Help with wiring LED strip

    Thanks for responding with such helpful information. I am so impressed with the level of support from this forum. When I get around to building this in about a month, I will post pictures.
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    Help with wiring LED strip

    First of all, thank you for responding to my post. You have shared a lot of helpful information; it looks like to spent a lot of time doing it, and for that I'm very grateful. I am aware that the output of the LEDs is likely less than a typical fluorescent 4 foot bulb. (I think depending on...
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    Help with wiring LED strip

    Hello, This is my first post. I am a newbie when it comes to wiring LEDs, so I would appreciate some patience, kindness, understanding, and goodwill. I am going to be attempting for the first time to convert our 4 foot fluorescent basement/shop lights to LEDs for as least expensive as...
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