Lighting
PWA Engineering LLC is a distributor for high efficiency lighting systems for industrial and commercial use. These systems include office lighting, warehouse (bay) lighting, and exterior lighting. Studies have confirmed that retrofitting the old lights for these new, high-efficient lights reduces power consumption by a factor of 1/2. That means that your company will only spend about half of what it does now for lighting. Other options, including motion sensors and solar panels, are avaliable for further reduction in power and utility costs. For product information on the outdoor induction lighting, click here Outdoor Induction Lighting Lighting Induction lamps are high frequency (HF) light sources, which follow the same basic principles of converting electrical power into visible radiation as conventional fluorescent lamps. “The fundamental difference between induction lamps and conventional lamps is that the Induction Lamps operate without electrodes.” By replacing HID based lighting systems like High Pressure Sodium, Metal Halide and Mercury Vapor with state-of-the art Induction, both energy savings and maintenance savings are realized. In real world applications, AITI Induction systems have reduced energy consumption by half and also dramatically improved the quality of light. Benefits Advantages of induction lamps: - The life of induction lamps on the market today reaches 100,000 hours. This makes it beneficial to use such lamps in applications where lamp maintenance is expensive.
- In fluorescent lamps the presence of hot electrodes limits the fill gas pressure. There is no such restriction in induction lamps, where gas pressure is optimized for maximum efficiency and as a result, the rating of lamp could be up to 200W.
Disadvantages of fluorescent lamps: - The life of fluorescent lamps to between 5,000 to 20,000 hours
- In fluorescent lamps the presence of hot electrodes limits the fill gas pressure and its composition to avoid chemical and physical reactions that destroy the electrodes. As far as lamp rating of fluorescent lamp is concerned, cathode emission takes place from a tiny spot heated by the discharge current, which cannot be over 1.5A this limits the maximum power rating and light output of these lamps (e.g. the highest rating of high output T5 lamp is 80W).
Induction Lights vs LED Feature/ Specifications | LED | AITI Induction Street Light Fixtures | | Energy savings | Approximately 40%-50% | 50% to 65% | | CRI | 70-80 | CRI 92-95 | | Color | 6500K | 4700-5000K | | Impact of ambient temperature >20C | Steep lumen depreciation | Impact is negligible | | Impact of cold temperature –30C to 20C | No impact on lumen dep. | It takes time to warm up | | Lumen maintenance over 100K Hours | 60% to 70% | 80% to 85% | | Probability of light source failures in 100 fixtures in first 10 years | 50% (50% of fixtures may have one or more LEDs failed) | 5% Maximum (as there is only one lamp in each fix.) | | Power factor | >.90 | .99 | | Total harmonic distortion | <20% | <10% | | Mercury | NO Mercury. | YES |
* Some of the general LED information taken from major LED manufacturers. Key Issues for Luminaire selection Key Issues | LED | AITI Induction Street Light Fixtures | | Illumination Level – IESNA RP-8 | | YES | | Lighting Uniformity (Max/Min) | | YES | | Quality of Light | Good (CRI 80, Color 6500K) | Excellent (CRI 92 Color 5000K) | | Glare | YES | NONE | | Light trespass | None | NONE | | Economics | Pay back time 8-12 Years | Pay back time 3-6 Years | | Warranty | Maximum 5 Years | 10 Years |
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