Need advice

[Nisei]

A friend of mine owns a bar and wants to cut down on his electrical bill.
He's got a few theater spotlights which use 240V 300W reflector bulbs and I was wondering if it would be possible to replace those bulbs with LED technology and still get the same output. I can't find a ready to install product but if I know which parts to use I can make something myself. I was thinking about 75 white LEDS in series or something like that but I have no idea if that would be bright enough. Any suggestions?

 

[Light Sabre]

Thought about this when I read your message.

FlashlightNews | 6500 Lumen Portable Battery Operated LED Area Light

 

[Nisei]

Interesting.
But that's way too bright (I was referring to a 300W conventional bulb, not halogen). And the theater lights he has serve as decorative pieces as well so what I'm looking for should be able to fit inthere.

 

[brickbat]

...theater spotlights which use 240V 300W reflector bulbs and I was wondering if it would be possible to replace those bulbs with LED technology and still get the same output...

Don't waste your time with LEDs. At this point, the only viable option is HID, specifically a ceramic metal halide lamp. a 70W CMH lamp would put out a similar amount of light to the 300W, and use less than 1/3 the energy.

Might be a different story in 5 years, as LED technology is advancing pretty fast...

BTW, you should use a more descriptive title for your thread...

 

[blasterman]

I was referring to a 300W conventional bulb, not halogen

?

Post a link please to such a bulb.

 

[blasterman]

Found it....just a bi-pin...and it's likely halogen. If this is the bulb then it fits inside a projector or simple DJ light. I have several that use 120v/300 watt halogen Bi-pins, and they are good for a couple hundred hours - if the housing is well ventilated.

http://www.bhphotovideo.com/c/product/152485-REG/Sachtler_L324H_Lamp_300W_240V.html#specifications

There are bright, cheap bulbs. With a good reflector and optics they shoot a pretty intense flood. I use mine to punch a disco ball, and I swear I can spin the thing without a motor. About 7000 lumens as I recall, but this all depends on the reflector and optics.

Going to need a lot of MC-Es to throw that much light, although you wouldn't have to match the total lumens of the halogen given the higher color temp of the MC-E and easier time with the optics. I don't think there's anything commercial out there, although I've seen some custom torches in the flashlight forums using clustered P7s and MC-Es that would light center field at Wrigley

Metal Halide, like 150watt in a spot reflector would likely be the only way match that 300watt bi-pin with commercial parts.

 

[ledstein]

You cant replace that bulb, there are no available led lights that have the same socket.
If your friend wants to invest a little he can get some led lighting fixtures or maybe some high power led lines.

Example of Led line, aprox 100w equivalent:
Extreme-Line Plus, White, 8 CREE X-RE Q5 LEDs, 1440lm, 90°, 12-30V


Some nice looking led fixture but a little bit pricey:shrug::
Ultraslim 600S LED Panel, 5400lm, 59x59 cm, White

 

[ponygt65]

Don't waste your time with LEDs. At this point, the only viable option is HID, specifically a ceramic metal halide lamp. a 70W CMH lamp would put out a similar amount of light to the 300W, and use less than 1/3 the energy.

Might be a different story in 5 years, as LED technology is advancing pretty fast...

BTW, you should use a more descriptive title for your thread...

I agree.

Par30 or 38 35/39, 70, or 100 watt Metal Halide would be the best option for you.