The Amount of Light
Though electricity or power is measured in Watts (Power = Current * Voltage), this ultimately means little to you, since you want the practical use of power, which is light (measured in Lumens (lm)).
Efficient use of electricity required is the key! The following chart shows how a Phocos lamp compares to a low-quality lamp in terms of efficiency, in other words the amount of light you get for the electricity you use.
| |
Phocos lamp(lm/W) |
Low-quality lamp |
| 5W lamp |
50 |
20 |
| 15W lamp |
63 |
30 |
As you can see, the Phocos lamps produce about 2.5 times as much light than a low-quality lamp.
Lowest System Cost (not necessarily lowest lamp cost)
Phocos lamps are efficient, which means that they produce more light (lm) for the power that is used. This means that you need to generate less electricity, which means that you can use a smaller (and therefore less expensive) system.
Also, Phocos lamps have a long lifespan. Thus, over the life of the system, you will need to purchase and replace the lamp fewer times.
The retail cost for a lamp is deceptive to its total system cost. A low quality lamp may initally look like a bargain, while the Phocos high quality lamp appear a bit more expensive; however in terms of total costs the Phocos lamp is actually
less than half as expensive as a low-quality lamp!
