Knightsbridge TPS28BPEMHF IP65 28W HF Square Emergency Bulkhead With Prismatic Diffuser And Black Base\r\n- For IP65 the bulkhead is protected from total dust ingress and water resistant from any angle.- Fully polycarbonate Impact Resistant Body & screwed diffuser.- Ideal for most exit areas with emergency batteries to provide up to 3-hour emergency duration.- It is emergency high-frequency electronic ballast.- This square polycarbonate bulkhead is durable and visually pleasing.\r\nThe Knightsbridge TPS28BPEMHF IP65 28W HF Square Emergency Bulkhead With Prismatic Diffuser and Black Base is used for a modern and stylish edge. A polycarbonate bulkhead with an IP65 rating, ideally suited to applications such as Commercial and Security lighting. These are maintained or non-maintained products and come supplied with emergency batteries to provide up to 3 hours of emergency duration. The bulkhead is durable and visually pleasing.\r\nFeatures:- IP Rating: IP65.- Emergency version.- Black base with a prismatic diffuser.- Supplied with 2D 28W 4-pin lamp, 3500K (replacement lamp available; 2D28W4P).- High-frequency electronic ballast.- Non-dimmable.- 28W High-Frequency Square.- Replacement Lamp: 2D28W4P.- Polycarbonate Bulkhead c/w Prismatic Diffuser & Black Base. - Dimensions: 250mm square. - Depth: 90mm.