Description: 1 source: LED COB smart IC chip 2: total spectrum ,cool white , warm white 3 temperature: 380-780nm ,6000-6500K,2800-3200K 4: 50W / 70W / 100W five voltage: 110V 220V 6: 54mm * 53mm 7 material: aluminum 8 life:> 10,000 hours nine angle: 120 ° Product features: energy electricity saving with larger point efficiency. Full spectrum required and critical for increasing flora and flowering (harvest sowing) very best for small grow box, grow tent, DIY hydroponic, Bonsai, garden ... and so forth comfortable, humanistic and excessive appearing Note: it might desire a cooler aluminum for cooling, Do no longer burn with out heat sink aluminum.