28w GR10q 4-pin CFL compact fluorescent light bulb, AC 220-240V.DD flat butterfly bulb shape, fitted with a GR10q 4-pin square push fit base, easy to install. Attention: Please kindly note the bulb size is 20x20cm, the diameter of the each pin is 2.35mm (top), 3.0mm(bottom). Please check if compatible with your light fitting before purchase. Thank you.Soft warm white 3500k with brightness 2000 lumens, no flicker, high color rendering >80Ra.Energy rating of G, 8,000hrs max lifetime, does the job intended. CFL Light bulb not dimmable. Note: this item product is with 4 pin GR10q fitting, NOT 2 pin GR8 fitting!Energy efficient CFL 4 pin light bulb 28W, good replacement for a bathroom ceiling light. Ideal for flush ceiling light for bathroom, kitchen, footpath area, corridor, stairwells, etc.