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GLS Standard Bulbs
The shape of the GLS, general lamp shape, light bulb hasn't changed since their invention in the early 1800s. Offering a consistent warm white light, in a choice of pearl or clear finish, incandescent GLS lamps are perfect for use in ceiling fixtures and lamps. Ranging from Edison Screw (SES-E14 or ES-E27) to Bayonet Cap (BC-B22d and SBC-B15D) base fittings, you'll find the right incandescent GLS bulb here at LightBulbs Direct.