300w halogen how many lumens

I apologize if this is the wrong forum, Led light bulbs looked like the right place to post. Be forged in fire and tempered by knowledge.

If not, you will either lack the courage to fight for your ideals or lack ideals worth fighting for. I believe we used the Feit 75w replacement bulbs from costco. I don't think that's reasonable unless cost is not a factor. Anyhow, that should be putting out about lumens. That makes this a problem I've looked at recently.

A quick guesstimate showed little difference in cost between using a 12V power supply to achieve lumens with either MT-G2 or XM-L2. This power supply should provide suitable output when running a pair of MT-G2's in series in direct drive You'll need a sizable heat sink and some cooling.

I forget if that should produce or lumens, but I think it was the latter. In my case, I decided buying a pair of the lumen LED shop lights from Costco was a better way to go since output and cost would be close, and I wouldn't have to fiddle around with making an appropriate fixture that wasn't a very high risk fire hazard if I bought the Costco light. I use a 50W LED floodlight for my backyard illumination.

Definitely going to be looking into these for high power flood lighting…maybe not that brand.. At least the high number of horrible reviews accurately reflects how crappy these are.

As with all chinese floodlights 10 watts or greater , the emitters dim or die very quickly with any use. Many chinese floodlights advertise bridgelux emitters, but I have yet to ever see one with a genuine bridgelux.

Buyer beware…. Try to look for Lumen values. Even with power LED s, your results will be disappointing unless you match lumens. Halogens can crank out a ton of lumens in minimal space.

If your lights are tied to a motion sensor, just leave it alone. You wont save any money. If they are on all the time, then yeah…consider LED … or the rare Florescent sic fixture. Perhaps I should remove the link to that offering…yuck.. Most importantly Legolas Jr. How many lumens is watts? Category: automotive motorcycles. A hour life halogen bulb might manage 20 lumens per watt, so lumens for W, although it's not uncommon to see W halogen bulbs only managing lumens.

How many watts is lumens? How bright is lumens? Lumens and Useful Lumens. Lumens and watts conversion charts for your reference 1 :.

How bright is a w halogen light? How do you calculate lumens? How many lumens is a watt halogen bulb? Type of bulb lumens lumens Incandescent watts watts Halogen watts watts CFL watts watts LED watts watts. How many lumens is a w halogen? Going on manufacturers so-called lumen figures I'm either going to be suffering from burnt retinas or groping around in the half light!

In practice I've just gone ahead and swapped them over and generally been satisfied. On paper the fluoros should be about 13k lumens total per fitting, the LEDs about 7k so I'd be thinking the light levels will be reduced.

In practice the lighting levels in the hall appear to be the same. I did consider going for cooler temp LEDs such as k to replicate the fluoro lighting but k seems perfectly okay without the blueness you get with higher temps. One downside I have found with LEDs is the propensity of the drivers to fail, certainly more frequently than the fluoro fittings. Just noticed the Luceco 38W led flood has a power factor of 0. Poor PF usually won't make much difference to running costs as normal metering records kWh rather than kVAh except perhaps for some industrial situations where there might be a penalty for poor PF.

I think Broadgage has a good point here. In the fitting a sizeable portion of this light will need to be reflected and the efficiency of the reflective material comes into consideration, so the actual lumens emitted by the fitting will be rather less. Whereas light emitting diodes are intrinsically directional, and the figures quoted probably refer to the entire fitting. In my experience, LEDs on places like instrument panels do lose light output over a considerable number of years, and it is beginning to look the same for the high power ones.

The directional properties of the lamps come into consideration here. Most fluorescent tubes emit light equally upwards and downwards. Directional ones have been made but never came into wide use. A lot of the upward light will probably be lost, especially if fittings are not kept clean and by my observations places like community halls do not attend well to such matters. Whereas LEDs tend to direct light downwards where it is wanted by design. I personally do tend to take "equivalents" with a pinch of salt, and would always look to lumen output.

As has been said elsewhere, illumination is measured in lux, but it would be impracticable for a lamp manufacture to attempt to quote this, because it depends on distance of lamp from surface and many other factors such as size of room, reflectivity of walls, efficiency of light fitting, etc.

It is the current that is the critical point where power factor is low. It is a dimmable bulb which uses - Watt of energy. This bulb will last up to hour. Life Hours 2, Wattage Watt Length 4. Diameter 0. Lumens 5, This 5, kelvin natural daylight light is non-dimmable and will replace watt incandescent bulbs.

It produces a similar light output 4, lumens , uses 38 watts of electricity, and up to 87 percent less energy than a standard incandescent light bulb. How do you calculate lumens? Calculate the amount of lumens you need. Multiply the area in square meters by the lux, or the area in square feet by the footcandles.