Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
hi peeps new to the site, was thinking of making the above some pointers would be very helpfull. i would like to run a 3 or 5 watt , what recomendations for batteries would you recomend for say a 10 hour run time. can you run a lux led strait of a battery? thanks in advance
LEDs need current limiters. Sometimes just a series resistor is used but other times a current regulator circuit is used.
3W and 5W is a lot of heat to carry on your head.
5W at 6V and for 10 hours needs a pretty big 10Ah lead-acid battery.
Two issues if you are going to play around with these larger LEDs:
Drive: You need to control the current to the proper level to run these.
Here is a neat driver module for 3 watt (700ma) LEDs that runs around
78% effeciency. You can drive up to three 3 watt LEDs in series from
a single 12volt battery.
**broken link removed**
Heatsink: Be sure you research and implement proper heatsinking mounting for these LEDs as they will self destruct if not properly mounted.
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