LED Color Temperature
Many of our customers are now familiar with the idea of a “warm” white or a “cool” white being offered by fluorescent and other light bulbs. LED light sources are based on the Kelvin system of measure. A warm color temperature is typically 3,000K or less. A “cool” white bulb commonly has a color temperature of 4,000K and higher on the Kelvin scale. Most of our fixtures range from 3000K-2500K, which provides a good source of warm light for home or office use. Below is a basic scale that gives a good indication of the range offered by LED sources.
What is Kelvin?
Kelvin temperature scale, a temperature scale having an absolute zero below which temperatures do not exist. Absolute zero, or 0°K is the temperature at which molecular energy is a minimum, and it corresponds to a temperature of −273.15° on the Celsius temperature scale.
LED vs CFL vs INCANDESCENT LIGHTS COMPARISONS
LED bulbs require much less wattage than CFL or Incandescent light bulbs, which is why LEDs are more energy-efficient and longer lasting than their competitors.
| Lumens (Brightness) | Incandescent Watts | CFL Watts | LED Watts (Viribright) |
| 400 – 500 | 40W | 8 – 12W | 6 – 7W |
| 650 – 850 | 60W | 13 – 18W | 7 – 10W |
| 1000 – 1400 | 75W | 18 – 22W | 12 – 13W |
| 1450-1700+ | 100W | 23 – 30W | 14 – 20W |
| 2700+ | 150W | 30 – 55W | 25 – 28W |
COST COMPARISON
To examine the cost comparison, let’s take a look at a standard 60-watt replacement incandescent bulb in this example. The energy consumption to use a bulb-like would cost about ₱90 over the course of 10 years. For an LED, running over the course of 10 years the actual cost would be only ₱18 to operate. Take a look at the table below for a breakdown.
| LED vs CFL vs Incandescent Cost | Incandescent | CFL | LED (Viribright) |
| Watts used | 60W | 14W | 7W |
| Average cost per bulb | ₱1 | ₱2 | ₱4 or less |
| Average lifespan | 1,200 hours | 8,000 hours | 25,000 hours |
| Bulbs needed for 25,000 hours | 21 | 3 | 1 |
| Total purchase price of bulbs over 20 years | ₱21 | ₱6 | ₱4 |
| Cost of electricity (25,000 hours at ₱0.15 per kWh) | ₱169 | ₱52 | ₱30 |
| Total estimated to cost over 20 years | ₱211 | ₱54 | ₱34 |
* THIS IS NOT AN ACTUAL COMPUTATION FOR VISUAL PURPOSES ONLY
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