1. LSL50-UM1260FT LumiSheetLamp 2’x 4’ 2’ x 4’ RECESSED TROFFER Construction Shallow height, less than 3 inches deep including the junction box, is making it suitable for the ceiling with low depth. White powder coated Aluminum Frame Back Plate – Aluminum 0.6T Junction Box – Electro Galvanized Iron 1.3T LSL50-UM1260FT 2’ x 4’ LED Troffer FEATURES & SPECIFICATIONS Electrical Integral, high efficiency driver and power supply Universal AC Input Voltage : 120-277V Nominal Power Factor : <0.9 Dimming: 0-10V standard Surface Mount Kit : Consult factory Listing cUL : Pending FCC : Pending DesignLights Consortium : Pending Warranty 5 YEARS limited warranty. Minimum 50,000 hours lifetime ORDERING INFORMATION Example: : LSL50-UM1260FT(NDWCA) Lead times will vary depending on order volumes and options selected. Consult with your sales representative. 23.7”(603) 2.5”(64.8) 47.7”(1221) 52.4”(1330.4) All dimensions are millimeters Unless otherwise indicated LumiSheetLamp series is a new concept in lighting that offers an optimal alternative for 2×2, 1×4 and 2×4 recessed fluorescent troffers. Utilizes our own patented optical system combined with premium high brightness LEDs. LumiSheetLamp provides highly uniform, smooth low glare/shadowing lighting for increased visual comfort. The improved lumen output and solid design allow for increased light levels as well as lower maintenance costs over time. Performance CCT : 3000/3500/4000K Lumen Output : 4,800lm(@3000K/3500K) / 5,000lm(@4000K) Efficacy : 96lm/W(@3000/3500K) / 100lm/W(@4000K) CRI : Minimum 80 Model Name -MarketSize-Mount(CCTOptic Frame Color MountDimming)Options Power Consumption LSL50-UM1260-FT ( WDWCA ) SMK LumiSheet Lamp 50WUSA 2'x4' Recessed3000KDiffused White Frame Cable0-10VSurface Mount Kit Y - Consult Factory 3500K N 4000K

2. LSL50-UM1260FT LumiSheetLamp 2’x 4’ 2’ x 4’ RECESSED TROFFER PHOTOMETRICS ZONAL LUMEN SUMMARY LSL50-UM1260FT(WDWCA), 4,800 delivered lumens, tested by Dongbu Lightec’s Lap in accordance to IESNA LM-79 Coefficients Of Utilization - Zonal Cavity Method Effective Floor Cavity Reflectance: 20% RCC %:80705030100 RW %:705030070503005030205030205030200 RCR: 01.19 1.16 1.001.11 1.06 1.02 1.00 11.081.030.990.951.051.010.970.840.970.930.900.930.900.880.890.870.850.83 20.980.900.830.770.960.880.820.700.840.790.740.810.770.730.780.740.710.69 30.890.790.710.640.870.770.700.600.740.680.620.710.660.610.690.640.600.58 40.820.700.610.540.800.680.600.510.660.590.530.640.570.520.610.560.520.49 50.750.620.530.470.730.610.530.450.590.520.460.570.500.450.550.490.450.43 60.690.560.470.410.680.550.470.390.530.460.400.520.450.400.500.440.390.37 70.640.510.420.360.630.500.420.350.480.410.350.470.400.350.460.400.350.33 80.600.460.380.320.580.460.380.310.440.370.320.430.360.310.420.360.310.29 90.560.430.340.290.550.420.340.280.410.340.290.400.330.280.390.330.280.26 100.530.390.310.260.510.390.310.260.380.310.260.370.300.260.360.300.260.24 ZoneLumens % Total 0-10 159.43.3% 10-20 455.39.5% 20-30 686.614.4% 30-40 823.817.2% 40-50 850.817.8% 50-60 767.716.1% 60-70 587.212.3% 70-80 346.27.2% 80-90 106.12.2% ZONAL LUMEN SUMMARY LSL50-UM1260FT(YDWCA), 4,800 delivered lumens, tested by Dongbu Lightec’s Lap in accordance to IESNA LM-79 Coefficients Of Utilization - Zonal Cavity Method Effective Floor Cavity Reflectance: 20% RCC %:80705030100 RW %:705030070503005030205030205030200 RCR: 01.19 1.16 1.001.11 1.06 1.02 1.00 11.081.030.990.951.051.010.970.840.970.930.900.930.900.880.890.870.850.83 20.980.900.830.770.960.880.820.700.840.790.740.810.770.730.780.740.710.69 30.890.790.710.640.870.770.700.600.740.680.620.710.660.610.690.640.600.58 40.820.700.610.540.800.680.600.510.660.590.530.640.570.520.610.560.520.49 50.750.620.530.470.730.610.530.450.590.520.460.570.500.450.550.490.450.43 60.690.560.470.410.680.550.470.390.530.460.400.520.450.400.500.440.390.37 70.640.510.420.360.630.500.420.350.480.410.350.470.400.350.460.400.350.33 80.600.460.380.320.580.460.380.310.440.370.320.430.360.310.420.360.310.29 90.560.430.340.290.550.420.340.280.410.340.290.400.330.280.390.330.280.26 100.530.390.310.260.510.390.310.260.380.310.260.370.300.260.360.300.260.24 ZoneLumens % Total 0-10 159.43.3% 10-20 455.39.5% 20-30 686.614.4% 30-40 823.817.2% 40-50 850.817.8% 50-60 767.716.1% 60-70 587.212.3% 70-80 346.27.2% 80-90 106.12.2%

3. LSL50-UM1260FT LumiSheetLamp 2’x 4’ 2’ x 4’ RECESSED TROFFER Product Image PHOTOMETRICS ZONAL LUMEN SUMMARY LSL50-UM1260FT(NDWCA), 5,000 delivered lumens, tested by Dongbu Lightec’s Lap in accordance to IESNA LM-79 Coefficients Of Utilization - Zonal Cavity Method Effective Floor Cavity Reflectance: 20% RCC %:80705030100 RW %:705030070503005030205030205030200 RCR: 01.19 1.16 1.001.11 1.06 1.02 1.00 11.081.030.990.951.051.010.970.840.970.930.900.930.900.880.890.870.850.83 20.980.900.830.770.960.880.820.700.840.790.740.810.770.730.780.740.710.69 30.890.790.710.640.870.770.700.600.740.680.620.710.660.610.690.640.600.58 40.820.700.610.540.800.680.600.510.660.590.530.640.570.520.610.560.520.49 50.750.620.530.470.730.610.530.450.590.520.460.570.500.450.550.490.450.43 60.690.560.470.410.680.550.470.390.530.460.400.520.450.400.500.440.390.37 70.640.510.420.360.630.500.420.350.480.410.350.470.400.350.460.400.350.33 80.600.460.380.320.580.460.380.310.440.370.320.430.360.310.420.360.310.29 90.560.430.340.290.550.420.340.280.410.340.290.400.330.280.390.330.280.26 100.530.390.310.260.510.390.310.260.380.310.260.370.300.260.360.300.260.24 ZoneLumens % Total 0-10169.53.3% 10-20484.49.5% 20-30730.514.4% 30-40876.417.2% 40-50905.117.8% 50-60816.716.1% 60-70624.612.3% 70-80368.37.2% 80-90112.92.2%