Lamp size is comparable to G16.5 bulb. E26 base retrofits into standard medium base lampholders. Available in clear, frosted or milky white glass. 1800K clear lamp emulates filament bulb. 2700K frosted lamp emulates standard light bulb. 2700K milky white lamp emulates standard light bulb. Tight color-binning of LEDs ensures uniformity of color. Emits no UV and no IR. Consult factory for shatter proof coating.