TP28W2DHF IP20 28W 2D HF Bulkhead with Opal Diffuser and White Base\r\n- The Diffuser has high-frequency electronic ballast.- The Bricklight is durable and visually pleasing.\r\nTP28W2DHF IP20 28W 2D HF Bulkhead with Opal Diffuser and White Base is IP20 28 Watt High-Frequency Round Bulkhead c/w Opal Diffuser and White Base. 2D 28 Watt 3500k 4-pin lamp supplied (replacement lamp product code 2D28W4P). High-frequency electronic ballast. Power factor rating of 0.9. Electrical termination via 15 Amp connector block c/w cord grip. Overall diameter 410mm, overall depth 110mm. Non-dimmable.\r\nFeatures:- White base.- Opal diffuser.- Supplied with 2D.- 28W 4-pin lamp, 3500K (replacement lamp available; 2D28W4P).- High-frequency electronic ballast.- Non-dimmable.- IP Rating: IP20.- 15 Amp connector block c/w cord grip.- Diameter: 410mm.- Depth:110mm.