36v Bulbs?

[kwackerman]

Hi All,

Does anyone know where I can buy 36v bulbs to use on my ebike. I would like to utilize a trailer rear light fitting and replace the 12v bulb with a 36v either 5w or even better 21w. I can get hold of 24v bulbs but assume these will just blow when used with 36v battery.

Any info will be gladly received.

Cheers

Andy

 

[onmebike]

Alien use 36v 5w bulbs on their Aurora rear light, they should stock spares?

Another option is use one of these to reduce voltage to 6volts and use 6volt bulbs.
Fast Lad Performance

 

[dan]

Hi All,

Does anyone know where I can buy 36v bulbs to use on my ebike. I would like to utilize a trailer rear light fitting and replace the 12v bulb with a 36v either 5w or even better 21w. I can get hold of 24v bulbs but assume these will just blow when used with 36v battery.

Any info will be gladly received.

Cheers

Andy

you will need 40 volt bulbs not 36 volt on a 36 volt battery

 

[aseb]

I got a DC / DC CONVERTOR (15W SINGLE OUTPUT POWER SUPPLY) off ebay to drop my 36V supply to the lighting voltage-just the IC so had to solder it in and weather protect, won the bidding for only £1 plus postage. It just depends on what is on the site when you look.
For reference I use one from the Melcher IMR 6 family, The outputs are 5V, 12V and 15V. Different chips have varying input voltages- the 40 IMR is 20V to 60V nominal 36V input. For a further smaller voltage drop if needed (eg 5V down to 3V you could just use a resistor of suitable wattage). Efficiency is reasonably high for this kind of component at 75% so is fine for these kinds of applications.

 

[piotrmacheta]

Or wire up 3 x 12v bulbs in series = 3 times the light output.

 

[garrence]

Bulbs? I remember those. How quaint!

 

[flecc]

Bulbs? I remember those. How quaint!

. And they used to be expresed in candlepowers.
.

 

[Old Timer]

Hi All,

Does anyone know where I can buy 36v bulbs to use on my ebike. I would like to utilize a trailer rear light fitting and replace the 12v bulb with a 36v either 5w or even better 21w. I can get hold of 24v bulbs but assume these will just blow when used with 36v battery.

Any info will be gladly received.

Cheers

Andy

The rear light on my Alien Aurora takes a 36V 5watt bulb and works a treat.

Dave

 

[onmebike]

Here's another option, use one of these cheap step down regulators. This one is capable of up to 5a output at 12v with up to 40volts input.

National Semiconductor | Semiconductors | Power Management | DC to DC Converter and Switching Regulator Chip | Fixed Voltage Switching Regulators |LM2678T-12/NOPB

Here's another method. 18-48v to 12v 5a reducer.

18V 19V 20V 22V 24V 48V DC to 12V DC 5A voltage reducer on eBay (end time 24-Aug-10 17:32:22 BST)

 

[NRG]

That second unit looks like it would do the business. The first is probably not the one, typically when a semiconductor device states it's maximum voltage as XYZ.....it REALLY means that's the maximum voltage and in this case 40v is not enough.

 

[passpato]

Please can you explain why 40 volts is not enough?

 

[NRG]

?? The max input voltage for the linked to DC-DC converter from RS is 40v, its not enough as it will fail with any voltage over this and a fully charged 36v battery will be around 42v...

 

[banbury frank]

Hi dc to dc Converter

DC 18-48V Converter To 12V 5A DC To DC | eBay

We use these on 48 volt battery's

Frank