3 STAGE LIGHT BULBS : Using E26 base 3 intensity bulbs is equivalent to 30W/70W/100W 3 brightness bulbs, Equivalent to providing 500 lumens/1200 lumens/1600 lumens, 3 level bulbs can be selected from 3 setting light bulbs (low-medium-high setting). According to the needs of different occasions, freely dimming the most suitable brightness..PERFECT REPLACEMENT: These 30W/70W/100W Equivalent of daylight 3-way LED bulbs are perfect direct replacements for incandescent, halogen or CFL bulbs. The maximum setting can illuminate 1600 lumens equivalent to a 100-watt incandescent bulb but only consumes the 6W/10W/15W, which can save you at least 85% of your electricity bill..IMPORTANT NOTE: Please note that 3-way LED bulbs need to be paired with 3-way dimmable switches, they are not compatible with dimmers (which cause noise), and conventional switches (only display a brightness of 1600Lumens) of your home..INSTANT-ON: The daylight white (5000K) of the 3-way LED bulb is very suitable for replacing incandescent/halogen bulbs. Clear and bright light, without adding additional tones, can create a comfortable lighting environment for you. It turns on immediately, no need to wait for warm-up like a CFL bulb..LONG LIFESPAN: No mercury, lead, or UV, and no dangerous glass to shatter. Rated 25000 hours lifespan. We provided a 24-Month warranty for our 3 way light bulbs. Each bulb has been strictly checked before shipping, Any problems, please kindly contact us anytime.