It?s Time to See the Light.Add warm & bright Bioluz LED energy saving LEDs to your home or office while maintaining the cosmetic beauty, brightness & incandescent color you've come to love.We've found that bulbs which are 4000K-5000K (Kelvin) generate a bluish tint on objects (like at a hospital or office building) and are not as comforting in a home. So while a higher number may sound better, it isn?t always.Many brands sell & market higher Kelvin (4-5000K) bulbs with lower lumens to make them "appear" brighter. Bioluz LED manufactures the correct color bulbs with exceptionally bright, energy efficient LEDs, so you get the color & brightness you're accustomed to without the harsh effect of higher color temperatures.Energy Saving without the SacrificeBioluz LED Energy Saving Bulbs turn on instantly just like an incandescent bulb, while saving you a substantial amount of money on your electricity bill. For example, when used 3 hours a day & 365 days a year, our LED lamps will last an unprecedented 23 years! And the best part: they use $.84 per year in energy!LED Light Lamp Features & Specifications? Highest Power LED per Watt? Instant on at Full Brightness? Dimmable? 110 Degree LED Beam Angle? Mercury Free - Environmentally Safe? 50 Watt Replacement Using Only 7 watts; 550 Lumens - Brightest in Industry? 2700K Color Temperature Matches the Color of Existing Incandescent Bulbs (Warm White)? Lasts Longer - All Aluminum Construction & Massive Heat Sink in our LED Light Bases? 4 Pack, Dimmable, UL Listed, FCC Certified, RoHS CompliantGuaranteed to Lighten Up Your WorldBioluz LED is committed to providing you with superior energy saving products that make your life easier & more affordable. If for any reason you aren't satisfied with your purchase, simply return your energy saving LED bulbs within 30 days for a full refund!