Industry Leader in High Temperature Environments

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At Glowble we believe in the philosophy of under promising and over delivering.

Based out of our commitment to provide the most energy efficient fixtures possible and the proprietary heat dissipation design, Glowble proudly states all of our EFSeries fixture specifications assuming a 150°F ambient operating temperature. This is a departure from most manufacturers in the lighting industry who generally choose to state fixture Lumens output at ambient temperature levels somewhere between 75°F to 80°F.

Due to this proprietary design, less heat is generated by the fixture, which creates less stress on all components. This equals a fixture with a longer more productive life span. Glowble EF-Series fixtures are designed to achieve 80% lumen maintenance at 100,000 hours when operating in a 150°F environment. That is over 11 years of 24 hour per day continuous use!

Below you will see our Glowble EF-Series Operating Characteristics Versus Ambient Temperature Guide. This is a quick reference chart to let you see how our Glowble EF-Series products will perform in your specific temperature environment.

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Operating Characteristics Versus Ambient Temperature

AMBIENT TEMP IN °F   EF-030 EF-040 EF-080 EF-120 EF-160 EF-240 EF-320
-40°F Lumen Output % 115.5% 115.5% 115.5% 115.5% 115.5% 115.5% 115.5%
Total Lumens 4,678 6,999 13,976 21,021 27,951 42,042 56,018
Lumens/Watt 133 155 155 155 156 156 156
-30°F Lumen Output % 114.8% 114.8% 114.8% 114.8% 114.8% 114.8% 114.8%
Total Lumens 4,649 6,957 13,891 20,894 27,782 41,787 55,678
Lumens/Watt 132 154 154 154 155 155 155
-20°F Lumen Output % 114.0% 113.2% 113.2% 113.2% 113.2% 113.2% 113.2%
Total Lumens 4,617 6,860 13,697 20,602 27,394 41,205 54,902
Lumens/Watt 131 152 152 152 153 153 152
-10°F Lumen Output % 113.2% 113.2% 113.2% 113.2% 113.2% 113.2% 113.2%
Total Lumens 4,585 6,860 13,697 20,602 27,394 41,205 54,902
Lumens/Watt 130 152 152 152 153 153 152
0°F Lumen Output % 112.5% 112.5% 112.5% 112.5% 112.5% 112.5% 112.5%
Total Lumens 4,556 6,818 13,613 20,475 27,225 40,950 54,563
Lumens/Watt 130 151 151 151 152 152 151
10°F Lumen Output % 111.7% 111.7% 111.7% 111.7% 111.7% 111.7% 111.7%
Total Lumens 4,524 6,769 13,516 20,329 27,031 40,659 54,175
Lumens/Watt 129 150 150 150 151 151 150
20°F Lumen Output % 110.9% 110.9% 110.9% 110.9% 110.9% 110.9% 110.9%
Total Lumens 4,491 6,721 13,419 20,184 26,838 40,368 53,787
Lumens/Watt 128 149 149 149 149 150 149
30°F Lumen Output % 110.2% 110.2% 110.2% 110.2% 110.2% 110.2% 110.2%
Total Lumens 4,463 6,678 13,334 20,056 26,668 40,113 53,447
Lumens/Watt 127 148 148 148 148 149 148
40°F Lumen Output % 109.3% 109.3% 109.3% 109.3% 109.3% 109.3% 109.3%
Total Lumens 4,427 6,624 13,225 19,893 26,451 39,785 53,011
Lumens/Watt 126 147 146 147 147 147 147
50°F Lumen Output % 108.5% 108.5% 108.5% 108.5% 108.5% 108.5% 108.5%
Total Lumens 4,394 6,575 13,129 19,747 26,257 39,494 52,623
Lumens/Watt 125 146 145 146 146 146 146
60°F Lumen Output % 107.7% 107.7% 107.7% 107.7% 107.7% 107.7% 107.7%
Total Lumens 4,362 6,527 13,032 19,601 26,063 39,203 52,235
Lumens/Watt 124 145 144 145 145 145 145
70°F Lumen Output % 107.0% 107.0% 107.0% 107.0% 107.0% 107.0% 107.0%
Total Lumens 4,334 6,484 12,947 19,474 25,894 38,948 51,895
Lumens/Watt 123 144 143 144 144 144 144
80°F Lumen Output % 106.0% 106.0% 106.0% 106.0% 106.0% 106.0% 106.0%
Total Lumens 4,293 6,424 12,826 19,292 25,652 38,584 51,410
Lumens/Watt 122 142 142 142 143 143 143
90°F Lumen Output % 105.4% 105.4% 105.4% 105.4% 105.4% 105.4% 105.4%
Total Lumens 4,269 6,387 12,753 19,183 25,507 38,366 51,119
Lumens/Watt 121 141 141 142 142 142 142
100°F Lumen Output % 104.4% 104.4% 104.4% 104.4% 104.4% 104.4% 104.4%
Total Lumens 4,228 6,327 12,632 19,001 25,265 38,002 50,634
Lumens/Watt 120 140 140 140 141 141 141
110°F Lumen Output % 103.7% 400.0% 103.7% 103.7% 103.7% 103.7% 103.7%
Total Lumens 4,200 24,240 12,548 18,873 25,095 37,747 50,295
Lumens/Watt 119 538 139 139 140 140 140
120°F Lumen Output % 102.7% 102.7% 102.7% 102.7% 102.7% 102.7% 102.7%
Total Lumens 4,159 6,224 12,427 18,691 24,853 37,383 49,810
Lumens/Watt 118 138 138 138 138 138 138
130°F Lumen Output % 102.0% 102.0% 102.0% 102.0% 102.0% 102.0% 102.0%
Total Lumens 4,131 6,181 12,342 18,564 24,684 37,128 49,470
Lumens/Watt 118 137 137 137 137 138 137
140°F Lumen Output % 101.0% 101.0% 101.0% 101.0% 101.0% 101.0% 101.0%
Total Lumens 4,091 6,121 12,221 18,382 24,442 36,764 48,985
Lumens/Watt 116 136 135 136 136 136 136
150°F* Lumen Output % 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
Total Lumens 4,050 6,060 12,100 18,200 24,200 36,400 48,500
Lumens/Watt 115 134 134 134 135 135 135
160°F* Lumen Output % 99.3% 99.3% 99.3% 99.3% 99.3% 99.3% 99.3%
Total Lumens 4,022 6,018 12,015 18,073 24,031 36,145 48,161
Lumens/Watt 114 133 133 133 134 134 134
170°F* Lumen Output % 98.3% 98.3% 98.3% 98.3% 98.3% 98.3% 98.3%
Total Lumens 3,981 5,957 11,894 17,891 23,789 35,781 47,676
Lumens/Watt 113 132 132 132 132 133 132
180°F* Lumen Output % 97.5% 97.5% 97.5% 97.5% 97.5% 97.5% 97.5%
Total Lumens 3,949 5,909 11,798 17,745 23,595 35,490 47,288
Lumens/Watt 112 131 131 131 131 131 131
190°F* Lumen Output % 96.6% 96.6% 96.6% 96.6% 96.6% 96.6% 96.6%
Total Lumens 3,912 5,854 11,689 17,581 23,377 35,162 46,851
Lumens/Watt 111 130 129 130 130 130 130
200°F* Lumen Output % 95.7% 95.7% 95.7% 95.7% 95.7% 95.7% 95.7%
Total Lumens 3,876 5,799 11,580 17,417 23,159 34,835 46,415
Lumens/Watt 110 128 128 129 129 129 129

*Glowble Lights are rated for a maxium ambient operating temperature of 150°F. Operation of fixtures outside of these parameters voids warranty and may result in a shorter life span of the fixture.