Specifications for led tube light(replaces standard t8t10 fluorescent lighting)led tube lights features:aluminum heat sink, no uv or rf interference, patented heat sink with or without optical diffuser, longer ife than incandescent & fluorescents . No mercury, no ballast required, wide voltage input range and constant current design, solid state, high shock & vibration resistant, mercury free, 66%+ savings inenergy consumption, quiet, no noise, no flickering. The products are in accordance with ce, uland fcc testing standards, retro fit kits available for direct replacement of fluorescent fixture.product name: led tube light - 4foot part numbers: lths-300 ftu15t5t8working voltage: ac 100v-277v acdc 12vlumens: frost coverwwnwdwcw1200130015001400lmclear coverwwnwdwcw1350145016501550lmcentral lux: 60-120 lux3m criwwnw70; dwcw80;diameter: t30mm t8, t10color temperature: warm white @ 2600-3700knatural white @ 4000-4800k_day white @ 5000-6500kcool white @ 6500-7500k_dimensions: 4 foot length (1200mm)lighting angle: 60, 90-120, 160 degree, life hours: 5 year moreled count: 300 led's(dsp or smd).housing temperature: less than 35 deg cambient temperature: - 2045replaces: 32-40 watt t8t12 fluorescentnet weight: 0.445kg