Energy Cost Comparison - 250 Watt Metal Halide vs. 140 Watt Cosmopolis |
| Technical Data >> Data Charts |
| ENERGY AND MAINTENANCE COST COMPARISON: 250 Watt Pulse Start Metal Halide vs. 140 Watt Philips CosmoPolis™ Ceramic Metal Halide |
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| 250 Watt Pulse Start Metal Halide | 140 Watt Philips CosmoPolis™ Lighting System | |
| ENERGY COST COMPARISON | ||
| Number of Fixtures | 20 | |
| Lamp Wattage | 250 | 140 |
| CRI | 70 | 70 |
| Average Lamp Life (Horizontal) | 11,250 Hours | 30,000 Hours |
| Approximate Initial Lumens | 19,000 | 16,500 |
| Approximate Mean Lumens | 14,000 | 14,020 |
| Total System Wattage | 288 | 153.5 |
| Lumens Per Watt | 66 | 107 |
| Energy Consumed Per Year (kWh) | 1261 | 672 |
| Energy Cost Per kWh | $0.11 | |
| Annual Energy Cost Per Fixture | $138.71 | $73.92 |
| Estimated Annual Savings Per Fixture | $64.79 | |
| Years of Operation | 5 | |
| Estimated Energy Savings | $6,479.0 | |
| Maintenance Cost Comparison | ||
| Number of Fixtures | 20 | |
| Lamp Cost | $38 | $85 |
| Estimated Labor Cost Per Fixture | $150 | $150 |
| Initial Cost | $3,030 | $3,085 |
| Years of Operation | 5 | |
| Life Cycles | 1.95 | 0.73 |
| Total Re-Lamping Cost | $5,924.10 | $2,252.05 |
| Potential Maintenance Savings | $3,672.05 | |
| Total Potential Savings | $10,151.05 | |
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