LED replacements for ordinary filament bulbs?

Nekarsulm

Hi all, have an Auto roller /5, the interior lights are 21watt bulbs, like an ordinary brake light bulb. Can you get a straight replacement led light with the bayonet fitting? I reckon it would extend my leisure battery life. Thanks in advance, NEC.

corkbuoy

These are what you want

http://www.ebay.ie/itm/Car-1157-P21-5W-White-60-SMD-LED-Backup-Turn-Signal-Light-Bulb-Lamp-/251173356960?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a7b1945a0

( check the socket first, it may be different to the car ones )

moodrater

corkbuoy wrote: »

These are what you want

http://www.ebay.ie/itm/Car-1157-P21-5W-White-60-SMD-LED-Backup-Turn-Signal-Light-Bulb-Lamp-/251173356960?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a7b1945a0

( check the socket first, it may be different to the car ones )

Those will be very cold temperature you'd want to be looking for warm white. As said check the socket I know of at least 8 different bayonets off the top of my head.

*Kol*

Nekarsulm wrote: »

Hi all, have an Auto roller /5, the interior lights are 21watt bulbs, like an ordinary brake light bulb. Can you get a straight replacement led light with the bayonet fitting? I reckon it would extend my leisure battery life. Thanks in advance, NEC.

If you change to the LED bulbs will you not lose the dim/bright function of the brake light bulb?

Nekarsulm

thanks everyone, Will check them when I get home. probably need a new leisure batter as well. Its labelled a "semi traction battery" so i suppose the same again should suffice?

ps, there are two separate bulbs for the dim/bright function. both single filaments, so really more like an indicator bulb

Nekarsulm

+1 Warm white. 12v tungsten is 2700°K (most led's advertised at 2700°K are really 3000°K).
You can get dimmable LEDs but you have to get a driver to PWM them so not with the existing circuitry.

Yeah genuine semi-traction are the best economically for camper use. It's not at all important stick to the same brand or rating as the original. I'd stick with a reputable manufacturer though as there's a lot of fakes out there. Trojan, Crown, Banner, Yuasa.

Open lead acid are best by years life, charging speed and sulphation resistance (if you have a charger that'll knock out 14.7v) and if ya don't mind the maintenance and the hydrogen (seal a box and vent outside possibly with fans kicking in at 14.2v).

If it says marine, leisure, CCA (cold cranking amps) or MCA (marine cranking amps) on it I just walk away.
There's no such thing as maintenance-free either that just means pressure valves and enough electrolyte to see through a warranty period at recommended charging voltages.

Nekarsulm wrote: »

ps, there are two separate bulbs for the dim/bright function. both single filaments, so really more like an indicator bulb

Sounds like two 12V outlets one for a low wattage bulb one for high.
If so you could get one LED per setting but look at luminosity not wattage because it's a better representation.

If you can't find what you want in the bulb department it's pretty easy change the socket(s) too.